CN120603556A

CN120603556A - Surgical support tube, surgical safety tube, surgical safety tube kit and fistula device

Info

Publication number: CN120603556A
Application number: CN202380088945.0A
Authority: CN
Inventors: 程跃; 方立; 刘亚东; 李强; 谢国海; 刘冠琳
Original assignee: First Affiliated Hospital Of Ningbo University
Current assignee: First Affiliated Hospital Of Ningbo University
Priority date: 2022-10-26
Filing date: 2023-10-13
Publication date: 2025-09-05
Also published as: WO2024088077A1

Abstract

A surgical support tube, a surgical safety tube, a surgical safety tube kit and a fistula device, comprising: a support tube (10), the support tube (10) having a guide channel (101), a first end portion (11) of the support tube (10) having a guide inlet (102), a second end portion (12) having a guide outlet (103), the guide inlet (102) and the guide outlet (103) being respectively connected to the guide channel (101), the support tube (10) having a normal state and an expanded state, in the normal state, the support tube (10) having a guide inlet (102), and a second end portion (12) having a guide outlet (103). The invention relates to a support pipe (10) having a first outer diameter (R1), a second outer diameter (R2) in an expanded state, the first outer diameter (R1) being smaller than the second outer diameter (R2), the support pipe (10) absorbing liquid in a normal state and transforming into an expanded state, so that the support pipe (10) can be placed in a surgical channel of a human body and absorb liquid and transform from a normal state into an expanded state; and a fixing member (20), the fixing member (20) being connected to a first end portion (11) of the support pipe (10), the fixing member (20) having a fixing surface (201) so as to be fixed to a surface of a human body.

Description

Surgical support tube, surgical safety tube kit, and fistulization device

Technical Field

The invention relates to the field of medical appliance supplies, in particular to a supporting tube for operation, a safety tube kit for operation and a fistulization device.

Background

In kidney surgery, a doctor usually constructs a surgical channel in a human body to perform surgery through the human body surgical channel, guides the flow of the blood through a guide tube after the surgery, and places hemostatic gauze or the like at a wound position of the human body surgical channel if the amount of bleeding at the wound position is small after the guide tube is pulled out. After a period of time has elapsed, if a secondary kidney operation is required due to continuous bleeding at the wound site or poor surgical effect, the physician needs to reinsert the relevant device from the wound site that may have healed or partially healed again to reconstruct the surgical path, which is painful for the patient, and the construction of the surgical path twice increases the risk of enlarging the wound in the patient.

Currently, in order to solve the problem of bleeding after kidney operation, doctors often place hemostatic gauze at the position of the wound after operation to stop bleeding. The gauze can cover the wound position of the human body operation channel, so that the condition of a patient is not conveniently judged by a doctor through observing the wound of the patient, and the gauze is easy to fall off, so that the doctor cannot timely and effectively observe information such as the color of the flowing blood, and the healing condition of the internal operation part cannot be effectively mastered. In addition, hemostatic gauze can only be placed on the outer side of a wound, cannot be in direct contact with the bleeding position of the wound, and has poor hemostatic effect. In addition, the hemostatic gauze is easy to fall off in the actual use process, so that hemostasis cannot be ensured. If, after a period of time after the patient's wound has been restored, poor healing is found in the body, a secondary operation is required, which usually requires re-penetration of the relevant instrument from the wound site that has been preset to a certain extent, which can cause great pain to the patient.

The nephrostomy tube is used as a drainage tube for operation, and plays an important role in the operation or operation recovery process of a human body. Mainly by puncturing or cutting kidney parenchyma, one part of the catheter extends into the renal pelvis, and the other part is outside the skin, so that urine, pus and blood can be drained to the outside of the body, and the early recovery of a patient is assisted. Specifically, the nephrostomy is suitable for ureter obstruction, nephropysis and symptoms of ureter blockage caused by late bladder cancer, such as nephrolithiasis operation or kidney tumor operation, and the nephrostomy tube is placed in a nephrostomy channel for a preset time to assist drainage by the nephrostomy operation, so as to achieve the purposes of draining renal pelvis, improving renal function and relieving infection of renal pelvis and renal parenchyma. Specifically, in a nephrostomy operation, a nephrostomy tube is attached to an ostomy bag in a patient's body, and urine, pus and blood in the patient's body are drained into the ostomy bag through the nephrostomy tube.

The prior ostomy tube is a hollow pipeline made of medical rubber, the front end of the tube is provided with a through hole so as to guide liquid in the renal pelvis into the ostomy tube and drain the liquid outside, and an air bag can be arranged at the front end of the tube to play roles in fixing and compression hemostasis. For example, in percutaneous nephrolithotomy, the fistulization tube plays a role in drainage on one hand, and on the other hand, because bleeding occurs in the operation process or after the operation, the fistulization tube can play a role in compression hemostasis. Percutaneous nephrolithotomy is to establish a skin-to-kidney passage in the waist, insert the nephroscope into the kidney through the passage, and break up and remove the kidney stones by using laser, ultrasound and other lithotripsy tools. After the operation, the nephrostomy tube is timely removed according to the clinical rehabilitation condition. After extubation, if the bleeding amount is small, a doctor can place hemostatic gauze and the like at the wound position to stop bleeding, but the two disadvantages are that firstly, the gauze is easy to fall off and the effect of stopping bleeding completely is not achieved, secondly, the extubation is painful for a patient, the wound position is exposed again and needs to be healed again, thirdly, after a period of time, the situation is poor, a secondary operation is needed, and related instruments are needed to be reinserted from the wound position which is possibly healed to construct an operation channel again, which is more painful for the patient.

Percutaneous nephrolithotomy is only used as an example for illustrating the disadvantages of tube drawing and secondary operation channel construction on patients, other operations of the kidney also have the problems of tube drawing and secondary operation channel construction, the kidney is an organ with very rich blood vessels, and the kidney blood flow accounts for one fourth of the heart discharge blood volume, so that the problems of drainage, holding, tube drawing and secondary operation channel construction are urgently needed to be solved.

Disclosure of Invention

An advantage of the present invention is to provide a surgical support tube that is capable of providing a guide channel in a human surgical path, thereby facilitating not only the observation of a patient by a doctor through the guide channel, but also the secondary surgery through the guide channel, reducing the pain of the patient, and reducing the risk of expanding the trauma in the patient.

An advantage of the present invention is to provide a surgical support tube that is capable of providing the guide channel over a period of time, wherein the outer tube is capable of expanding such that the outer wall of the expanded outer tube is in close contact with the inner wall of the body's surgical channel for compression hemostasis, and wherein the inner tube does not need to be expanded to avoid impeding the passage of a guide element through the guide channel by reducing the inner diameter of the guide channel.

One advantage of the present invention is to provide a surgical support tube that can be expanded such that the outer wall of the expanded support tube is in close contact with the inner wall of the human surgical passageway to block the capillary blood holes of the inner wall of the human surgical passageway and to provide a compression hemostasis effect.

An advantage of the present invention is to provide a surgical support tube in which the outer wall of the surgical support tube includes hemostatic material to provide a hemostatic effect.

An advantage of the present invention is to provide a surgical support tube wherein the surgical support tube comprises degradable material that gradually degrades within a human surgical path to facilitate patient healing of a wound, wherein the surgical support tube comprises an outer tube and an inner tube, the outer tube and the inner tube being layered, the outer tube and the inner tube each being made of degradable material, the inner tube forming the guide path such that the outer tube degrades first and the inner tube degrades later to increase the length of time the guide path remains.

An advantage of the present invention is to provide a surgical support tube wherein a barrier can be provided between the outer tube and the inner tube to extend the length of time the inner tube degrades, further providing the length of time the guide channel remains.

An advantage of the present invention is to provide a surgical support tube in which the outer tube is made of a degradable material and the inner tube is made of a non-degradable material such that the outer tube gradually degrades over a period of time to facilitate patient healing of a wound while the inner tube is non-degradable to maintain the guide channel to facilitate patient condition visualization through the guide channel or to perform secondary surgery, etc.

An advantage of the present invention is to provide a surgical support tube that can be secured to a surface of a human body to avoid falling off and the like.

An advantage of the present invention is to provide a support tube for a surgical operation, in which the support tube is capable of avoiding damage to internal organs of a human body due to the patient's actions in the portion of the support tube that is not completely degraded inside the human body due to the portion of the support tube that is near the outside of the human body being completely degraded first

An advantage of the present invention is to provide a surgical support tube that can close or open the guide inlet of the guide channel so as to avoid outflow of liquid such as blood or infection of a patient due to exposure of the guide inlet after closing the guide inlet, or observe the condition of the patient through the guide channel after opening the guide inlet, or perform a secondary operation, etc.

An advantage of the present invention is to provide a surgical support tube having a plurality of drainage slots to reduce the occurrence of blockage.

An advantage of the present invention is to provide a surgical support tube in which the ends are bent when the surgical support tube is placed in a human body, and no tip or protruding portion is present, thereby reducing adverse stimulus to organs in the human body.

An advantage of the present invention is to provide a surgical support tube wherein the guide channel of the surgical support tube is adapted to pass through a guide element for insertion of the surgical support tube into a human surgical channel through the guide element.

An advantage of the present invention is to provide a surgical safety tube and surgical safety tube kit adapted to extend into a patient's body along a fistula of the patient, through which bleeding in the patient's body can be directed out through its viewing passage, which converts to an expanded state upon contact with blood in the fistula, and which is bulky and in contact with bleeding from the fistula, for rapid hemostasis.

An advantage of the present invention is to provide a surgical safety tube and surgical safety tube kit that has an internal body portion made of a degradable material that does not require removal of the fistula from the patient as it heals, thereby facilitating healing of the fistula in the patient.

An advantage of the present invention is to provide a surgical safety tube and a surgical safety tube kit, wherein the inner portion of the surgical safety tube comprises an inner core and an outer shell, the outer shell is made of a degradable material, the diameter of the surgical safety tube is reduced along with healing of a fistula of a patient, the contact area between the surgical safety tube and the fistula of the patient can be reduced during extraction, and the resistance during extraction is reduced.

An advantage of the present invention is to provide a surgical safety tube and a surgical safety tube kit in which the head section of the inner body portion assumes a bent state in a natural state, contributing to the stability of the safety tube installed in the patient.

It is an advantage of the present invention to provide a surgical safety tube and a surgical safety tube kit that further includes an external portion adapted to be secured to the outside of a patient to secure the internal portion of the safety tube.

An advantage of the present invention is to provide an ostomy device comprising a drainage tube and a ostomy bag, wherein the ostomy bag is detachably connected to the drainage tube without additional connecting elements, which is easy to operate, which is advantageous for reducing the workload of medical staff and saving time.

One advantage of the present invention is to provide an ostomy device wherein the drainage tube is made of a degradable material, the drainage tube automatically degrades in the body, and the outer body automatically drops or shears off, thereby alleviating the pain of pulling out the tube and facilitating the rehabilitation of the patient.

An advantage of the present invention is to provide an ostomy device wherein the drainage tube comprises a stabilizing section connected to the inner tube, which stabilizing section can still secure the inner tube after degradation of the outer tube, and can construct a secondary surgical channel and drain through the inner tube, solving the problem of constructing a secondary surgical channel at the already healed wound site after extubation, alleviating patient pain and saving surgical time and surgical costs.

It is an advantage of the present invention to provide an ostomy device wherein the degradable drainage tube comprises an outer tube and an inner tube, which are adapted to be integrally formed, which may be manufactured in layers, which may be of the same material, or of different materials.

An advantage of the present invention is to provide an ostomy device wherein the catheter comprises a stabilizing section which is arranged on the outer tube, which prevents the catheter from slipping out of the body, which is self-degrading, and which is non-toxic and which is absorbable or metabolizable by the human body.

The invention has the advantages that the fistulization device is provided, when drainage is not needed, the fistulization bag is taken down, the drainage tube is left in the human body, the hemostatic effect can be achieved, medical staff can observe the condition in the human body through the fluid at the outlet position of the drainage tube, meanwhile, the sealing unit is used for sealing, foreign matters are prevented from entering, when drainage is needed again, the sealing unit is taken down, the fistulization bag is connected, and the operation is simple and the use is convenient.

An advantage of the present invention is to provide an ostomy device in which the drainage tube is adhesively secured to the surface of the body, which is both strong and reduces discomfort to the body.

To achieve at least one of the above advantages, an aspect of the present invention provides a surgical support tube, comprising:

A support tube having a guide passage, a first end portion of the support tube having a guide inlet, a second end portion having a guide outlet, the guide inlet and the guide outlet being respectively communicated with the guide passage, the support tube having a normal state in which the support tube has a first outer diameter and an expanded state in which the support tube has a second outer diameter smaller than the second outer diameter, the support tube being converted from the normal state to the expanded state in which the support tube absorbs liquid after being placed in a human surgical passage, and

The fixing piece is connected to the first end of the supporting pipeline and is provided with a fixing surface so as to be fixed on the surface of a human body.

The surgical support tube according to one embodiment, wherein the support tube comprises a degradable material such that the support tube is positioned in a human surgical passageway while leaving the guide passageway for a period of time.

The surgical support tube according to one embodiment, wherein a tube wall thickness of the support tube decreases from the first end to the second end.

The surgical support tube according to one embodiment, wherein the support tube comprises an inner tube and an outer tube, the outer tube being layered with the inner tube, the inner tube forming the guide channel, the inner tube and the outer tube each being made of a degradable material.

The surgical support tube according to one embodiment, wherein the support tube further comprises a barrier layer disposed between the outer tube and the inner tube.

The surgical support tube according to one embodiment, wherein the support tube includes an inner tube and an outer tube, the outer tube being located outside of the inner tube, the inner tube forming the guide channel, the outer tube being made of a degradable material, the inner tube being made of a non-degradable material.

The surgical support tube according to one embodiment, wherein the support tube includes an inner tube and an outer tube, the outer tube being located outside the inner tube, the inner tube forming the guide channel, the outer tube having the normal state and the expanded state.

The surgical support tube according to one embodiment, wherein an outer wall of the support tube comprises a hemostatic material.

The surgical support tube according to one embodiment, wherein the fixation surface is provided with an adhesive material.

The surgical support tube according to one embodiment, wherein the fixing member includes a fixing portion integrally connected with the support tube, the fixing portion having a through hole communicating with the guide inlet of the guide passage, and a closing portion provided to the fixing portion in such a manner as to close the through hole, the fixing portion having the fixing surface.

The surgical support tube according to one embodiment, wherein the closing portion has a cylinder that is interference fit mounted to the through hole of the fixing portion.

The surgical support tube according to one embodiment, wherein the securing member further includes a connecting portion movably connected between the securing portion and the sealing portion.

The surgical support tube according to one embodiment, wherein the closure portion is threadably mounted to the fixation portion.

The surgical support tube according to one embodiment, wherein the fixing member includes a fixing portion having a through hole, and a closing portion provided to the fixing portion in such a manner as to close the guide inlet, the fixing portion having the fixing surface, the first end portion of the support tube passing through the through hole of the fixing portion.

The surgical support tube according to one embodiment, wherein the fixing member includes a fixing portion and a connecting portion, the connecting portion being movably integrally connected between the first end portion of the support tube and the fixing portion, the fixing member having an open state in which the guide inlet of the support tube communicates with the outside and a closed state in which the fixing portion closes the guide inlet, the fixing portion having the fixing surface so that the fixing surface is fixed to the surface of the human body in the closed state.

The surgical support tube according to one embodiment, wherein the fixing portion has a groove, the groove having a size larger than that of the first end portion of the support tube, the groove being located on the same side as the fixing surface so that an opening of the groove is closed by the body surface to form a closed cavity when the fixing surface is fixed to the body surface, so that the first end portion of the support tube is closed in the closed cavity.

The surgical support tube according to one embodiment, wherein the second end of the support tube has a natural state in which the second end is curved and a guided state in which the second end is substantially straightened to facilitate passage of a guide element through the guide channel to guide the second end from the natural state to the guided state for delivery into the body passageway.

The surgical support tube according to one embodiment, wherein the second end portion has at least one drainage port, the drainage port being in communication with the external space, the drainage port being in communication with the guide channel to form a drainage channel.

To achieve at least one of the above advantages, an aspect of the present invention also provides a surgical support tube, comprising:

A support tube having a guide channel, a first end having a guide inlet and a second end having a guide outlet, the guide inlet and the guide outlet communicating with the guide channel, respectively, the support tube comprising a degradable material to facilitate placement of the support tube in a human surgical tunnel while leaving the guide channel for a length of time, and

The invention provides a surgical safety tube, comprising:

An in-body portion having a head section, a middle section and a tail section, the head section and the tail section being located at opposite ends of the middle section, respectively, and the in-body portion further having an observation channel communicating the head section, the middle section and the tail section;

the body portion has a contracted state and an expanded state, the body portion being capable of transitioning from the contracted state to the expanded state upon contact with liquid in the fistula tract.

Preferably, the inner body portion includes an inner core surrounding the viewing channel and an outer shell surrounding the outer side of the inner core, the outer shell expanding upon contact with liquid in the fistula tract, the inner body portion transitioning from the contracted state to the expanded state.

Preferably, the housing comprises a hemostatic sponge.

Preferably, the housing is made of a degradable material and has a plurality of apertures into which blood in the fistula can enter, causing the housing to expand and the inner body portion to transition from the contracted state to the expanded state.

Preferably, the inner core is made of a degradable material.

Preferably, the inner core has a plurality of pores into which blood in the fistula can enter, such that the inner core expands and the inner core has a lower porosity than the outer shell.

Preferably, the head section of the body portion has a natural state in which the head section is curved and a guided state in which the head section is substantially straightened.

Preferably, the head section comprises a head section pipeline, one end of the head section pipeline, which is far away from the tail section, is provided with a distal end opening communicated with the observation channel, and the side wall of the head section pipeline is also provided with a plurality of side openings communicated with the observation channel.

Preferably, the side wall of the head section is provided with a plurality of drainage grooves;

The tail section is provided with a tail channel;

The gravity grooves are respectively communicated with the middle channel, the middle channel is also communicated with the tail channel, and the gravity grooves, the middle channel and the tail channel are communicated to form the observation channel.

Preferably, the head section comprises a middle guide pipe and a plurality of drainage plates, one ends of the drainage plates are connected to the middle guide pipe, the other ends extend away from the middle guide pipe, and drainage grooves are formed between the adjacent drainage plates.

Preferably, the intermediate guide tube has a guide channel communicating with the intermediate channel for passage of a guide wire.

Preferably, the head section further comprises a plurality of protection plates, the protection plates are mounted at one ends of the drainage plates, which are far away from the middle guide pipe, a gap is reserved between every two adjacent protection plates, and the gap is communicated with the drainage groove.

Preferably, the surgical safety tube further comprises an external portion connected to the tail section, the external portion being adapted to be secured to the outside of the patient.

Preferably, the external portion includes a securing tab adapted to be attached to the tail section, the securing tab further adapted to be fixedly mounted to the patient's external body to secure the tail section.

Preferably, the fixing piece comprises a connecting part and an adhering part, the adhering part is suitable for adhering to the outside of the patient, and the connecting part is integrally connected with the tail section;

The tail section has a tail opening in communication with the viewing channel;

the extracorporeal portion further includes a plug adapted to be mounted to the viewing channel through the tail opening.

Preferably, the external part further comprises a connecting strip, one end of the connecting strip is connected to the fixing piece, and the other end of the connecting strip is connected to the sealing plug.

Preferably, the fixing piece comprises an adhesive part and a sealing part, wherein the adhesive part is suitable for being adhered to the outside of the patient;

The tail section has a tail opening in communication with the viewing channel;

the plug is adapted to be mounted to the viewing channel through the tail opening.

Preferably, the external part further comprises a connecting strip, one end of the connecting strip is connected to the tail section, and the other end of the connecting strip is connected to the fixing piece.

Preferably, the fixing piece comprises an adhesive part and a sealing part, wherein the adhesive part is suitable for being adhered outside the patient;

The tail section is provided with a tail opening communicated with the observation channel;

The sealing cover is suitable for being covered on the outer side of the tail opening.

Preferably, the fixing piece comprises an adhesive part and an avoiding part, wherein the adhesive part is suitable for being adhered outside the patient;

The outer body part further comprises a first sleeve and a second sleeve, the first sleeve is provided with a first sleeve channel, the second sleeve is provided with a second sleeve channel, the first sleeve is connected with the avoidance part, the first sleeve channel is communicated with the avoidance opening, and the tail section is suitable for entering the first sleeve channel through the avoidance opening;

The outer body portion further includes a receiving pocket mounted to the second sleeve and in communication with the second sleeve passage;

When the second sleeve is mounted on the first sleeve, the tail section is communicated with the storage bag, and blood in the observation channel can flow into the storage bag.

According to another aspect of the present invention, there is further provided a surgical safety tube kit comprising:

The surgical safety tube comprises an internal part and an external part, wherein the internal part is provided with a head section, a middle section and a tail section, the head section and the tail section are respectively positioned at two ends of the middle section, and the internal part is also provided with an observation channel communicated with the head section, the middle section and the tail section;

a guide wire adapted to be inserted into a fistula tract of a patient;

a sheath adapted to be inserted along the guidewire into the fistula tract;

The surgical safety tube is adapted to be advanced along the guidewire into the sheath for advancement into the fistula, the surgical safety tube remaining in the fistula after the guidewire and sheath exit the fistula.

The present invention provides an ostomy device comprising:

A drainage tube, wherein the drainage tube comprises a drainage tube body and a fixing unit, the drainage tube body comprises a drainage tube front section and a drainage tube rear section connected with the drainage tube front section, the drainage tube body is provided with a guide channel, at least one fluid channel and at least one fluid groove communicated with the fluid channel, wherein the fluid groove is arranged on the drainage tube front section, the guide channel and each fluid channel extend from the drainage tube rear section to the drainage tube front section, the fixing unit comprises a fixing main body and a connecting main body, the fixing main body is connected with the drainage tube rear section and the connecting main body, and

An ostomy bag comprising a holding unit, a connecting unit and a fluid inlet, wherein the fluid inlet is formed in the holding unit, the connecting unit is arranged at the fluid inlet and is detachably connected with the connecting body, so that the ostomy bag is detachably connected with the drainage tube, and fluid flowing out of the drainage tube enters the holding unit through the fluid inlet.

According to one aspect of the invention, the drainage tube body comprises an inner tube, an outer tube and at least one reinforcing rib, wherein the outer tube surrounds the outer portion of the inner tube and is connected with the inner tube through the reinforcing rib, and each fluid channel is positioned among the outer tube, the inner tube and the reinforcing rib. Wherein the outer tube, the inner tube and the reinforcing ribs are manufactured in layers and then connected in a hot pressing mode.

According to another aspect of the present invention, the drainage tube body includes an inner tube, an outer tube and at least one reinforcing rib, the outer tube surrounds the outer portion of the inner tube and is connected to the inner tube by the reinforcing rib, and each of the fluid passages is disposed at the outer tube with a space therebetween. Wherein the outer tube, the inner tube and the reinforcing ribs are manufactured by integrally forming.

According to another aspect of the invention, the drainage tube body comprises an inner tube and an outer tube, the outer tube is connected to the outer side of the inner tube, and the inner tube and the outer tube are integrally formed.

The drainage tube body further comprises a stabilizing section, the stabilizing section is arranged at the joint of the front section of the drainage tube and the rear section of the drainage tube, and the stabilizing section is provided with an air inflation cavity and an air inflation channel communicated with the air inflation cavity.

According to one aspect of the invention, the stabilizing section comprises a stabilizing body, the peripheral edge of the stabilizing body being connected to the outer tube, the inflation lumen being located between the outer tube and the stabilizing body, the inflation channel being provided in the outer tube.

According to another aspect of the invention, the stabilizing section comprises a stabilizing body, the bottom of the stabilizing body is connected to the outer tube, the inflation lumen is located inside the stabilizing body, and the inflation channel is located in the outer tube.

According to another aspect of the invention, the stabilizing section comprises a stabilizing body connected to the inner tube, the inflation lumen is located between the inner tube and the stabilizing body, and the inflation channel is located in the inner tube.

Wherein the outer tube, the inner tube and the stabilizing body are all made of degradable materials.

The drainage tube body also has at least one fluid outlet and a guide inlet, wherein each fluid outlet communicates with each fluid channel, the guide inlet communicates with the guide channel, and each fluid outlet and the guide inlet are arranged at the tail end of the rear section of the drainage tube at intervals.

The connecting main body is connected with the connecting unit in a way of threaded connection, sleeve joint, clamping or pasting.

The ostomy device further comprises a sealing unit comprising an extension body and a sealing body, wherein the extension body is connected between the fixing body and the sealing body, and the sealing body is matched with the tail end of the rear section of the drainage tube so as to seal the drainage tube body.

The fixing main body is provided with an adhesive surface, a fixing surface and a movable surface, wherein the movable surface and the fixing surface are respectively arranged on two sides of the adhesive surface, the fixing surface is connected with the connecting main body and the outer tube, and the drainage tube can be fixed on a patient body after the movable surface is peeled off from the adhesive surface.

Drawings

Fig. 1 is a schematic perspective view of a natural state of a surgical support tube according to one embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a guide member passing through a surgical support tube in accordance with one embodiment of the invention.

Fig. 3A is a schematic view of a guide member inserted into a human surgical channel according to one embodiment of the present invention.

Fig. 3B is a schematic view of a guide tube inserted through a guide member into a human surgical channel in accordance with one embodiment of the present invention.

Fig. 3C is a schematic view of a surgical support tube inserted into a guide tube through a guide member according to one embodiment of the present invention.

Fig. 3D is a schematic view of a surgical support tube inserted through a guide member into a body surgical passageway after removal of the guide tube in accordance with one embodiment of the present invention.

Fig. 3E is a schematic illustration of a surgical support tube being placed in a body surgical tunnel after a guide member has been removed, in accordance with one embodiment of the present invention.

Fig. 3F is a schematic view of a surgical support tube in a closed state according to one embodiment of the invention.

Fig. 3G is a schematic illustration of a post-degradation surgical support tube in accordance with one embodiment of the invention.

Fig. 4A is a schematic view of a first inner diameter of a support tube of a surgical support tube in a normal state according to one embodiment of the present invention.

Fig. 4B is a schematic view of a second inner diameter of a support tube of a surgical support tube in an expanded state in accordance with one embodiment of the invention.

Fig. 4C is a schematic illustration of a change in wall thickness of a support tube of a surgical support tube in accordance with one embodiment of the present invention.

Fig. 5A is a schematic view of an outer tube and an inner tube of a support tube of a surgical support tube in accordance with one embodiment of the invention.

Fig. 5B is a schematic view of an outer tube and an inner tube of a support tube of a surgical support tube provided with a barrier according to one embodiment of the invention.

Fig. 6 is a schematic view of a fixture for a surgical support tube in accordance with a variant embodiment of the invention.

Fig. 7A is a schematic view of a fixture for a surgical support tube in accordance with another alternate embodiment of the present invention.

Fig. 7B is a schematic view of a fixture for a surgical support tube in accordance with another alternate embodiment of the present invention.

Fig. 8 is a schematic perspective view of a natural state of a surgical support tube according to another embodiment of the present invention.

Fig. 9 is a schematic view of a surgical support tube according to another embodiment of the present invention positioned in a body surgical tunnel.

Fig. 10 is a schematic perspective view of a natural state of a surgical support tube according to another embodiment of the present invention.

Fig. 11 is a schematic cross-sectional view of a surgical support tube in accordance with another embodiment of the invention.

FIG. 12 is a schematic perspective view of the natural state of the surgical safety tube according to the preferred embodiment of the present invention;

FIG. 13 is a schematic view of a bent state of a surgical safety tube according to a preferred embodiment of the present invention;

FIG. 14 is a schematic representation of a surgical safety tube in comparison to an expanded state in accordance with a preferred embodiment of the present invention;

FIG. 15 is a cross-sectional view taken along line A-A of FIG. 12;

FIG. 16 is a cross-sectional view taken along line B-B of FIG. 12;

Fig. 17, 18, 19, 20, 21 and 22 are schematic views showing a state during use of the surgical safety tube according to the preferred embodiment of the present invention;

FIG. 23 is a schematic perspective view of a third variant embodiment of a surgical safety tube according to a preferred embodiment of the invention;

FIG. 24 is a cross-sectional view taken along line D-D of FIG. 23;

FIG. 25 is a perspective view of a third fourth variation of a surgical safety tube according to a preferred embodiment of the present invention;

FIG. 26 is a schematic perspective view of a fifth variant embodiment of a surgical safety tube according to a preferred embodiment of the invention;

Fig. 27 and 28 are perspective views of a sixth variant embodiment of a surgical safety tube according to a preferred embodiment of the present invention.

Fig. 29 is a schematic perspective view of an ostomy device according to a preferred embodiment of the invention.

Fig. 30 is an exploded view of the ostomy device according to the above preferred embodiment of the invention.

Fig. 31 and 32 are partially cross-sectional schematic views of the ostomy device according to the above preferred embodiment of the invention.

Fig. 33 is a schematic view, partly in section, of a variant of the ostomy device according to the above-described preferred embodiment of the invention.

Fig. 34 is a schematic cross-sectional view of one implementation of a drainage tube comprised by the ostomy device according to the above-described preferred embodiment of the invention.

FIG. 35 is a schematic cross-sectional view of another implementation of the drain tube according to the above preferred embodiment of the invention.

FIG. 36 is a schematic cross-sectional view of yet another implementation of the drain tube according to the above preferred embodiment of the invention.

Fig. 37 is a schematic perspective view of an ostomy device according to another preferred embodiment of the invention.

Fig. 38 and 39 are partially cross-sectional schematic views of the ostomy device according to the above preferred embodiment of the invention.

Fig. 40 is a schematic partial cross-sectional view of a variation of the ostomy device according to the above preferred embodiment of the invention.

Fig. 41 to 43 are schematic perspective views of three modes of construction of the drainage tube according to the above preferred embodiment of the present invention.

FIGS. 44 and 45 are schematic partial cross-sectional views of two different ways of connecting the drainage tube and the stabilizing section of the present invention.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

References to "one embodiment," "an embodiment," "example embodiment," "various embodiments," "some embodiments," etc., indicate that the embodiment(s) of the invention so described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the feature, structure, or characteristic. Furthermore, some embodiments may have some, all, or none of the features described for other embodiments.

In kidney surgery, a doctor generally constructs a surgical channel at a position of a human kidney, which extends from a body surface to the inside of the human kidney to perform surgery through the human surgical channel, and pulls out related instruments such as a guide tube or the like inserted into the human surgical channel after the surgery, and since a wound of the human surgical channel gradually heals, the related instruments are reinserted from a position of the wound that may have healed to reconstruct the surgical channel when performing a secondary surgery, which is painful for a patient, and there is a risk of enlarging a wound in the patient.

Therefore, in order to avoid this, referring to fig. 1 and 2, a preferred embodiment of the present invention provides a surgical support tube 100 for being inserted into a human body surgical passage after surgery, the surgical support tube 100 providing a guide passage 101, the guide passage 101 communicating the inside of the human body with the outside, so that liquid such as blood or water remaining in the inside of the human body after surgery flows out to the outside through the guide passage, so that a doctor can observe the condition of a patient through the liquid flowing out of the guide passage 101, and since the surgical support tube 100 provides the guide passage 101 in the human body surgical passage, a secondary surgery can be conveniently performed through the guide passage 101, avoiding reinsertion of related instruments from a wound site that may have healed to construct the surgical passage again, reducing pain of the patient, and reducing the risk of expanding the wound in the patient. The surgical support tube 100 is suitable for use in surgery such as, but not limited to, kidney surgery such as percutaneous nephroscope surgery, and the like. These operations are performed by making a wound in a human body such as a kidney to construct a human body operation channel, and thus bleeding of various degrees after the operation is necessarily performed, or foreign substances such as blood or blood clots are present in the kidney.

For example, referring to FIGS. 3A-3F, taking kidney surgery as an example, a procedure or method for inserting the surgical support tube 100 into a body surgical passageway may include inserting a guide member 200 into the body surgical passageway, inserting a guide tube 300 into the body surgical passageway along the guide member (the guide member passing through the interior passageway of the guide tube) with an inner diameter greater than an outer diameter of the surgical support tube 100, inserting the surgical support tube 100 into an interior passageway 301 of the guide tube 300 along the guide member (the guide member passing through the guide passageway 101 of the surgical support tube 100), and removing the guide tube and the guide member 200 such that the surgical support tube 100 remains within the body surgical passageway. It will be appreciated that the inner channel 301 of the guide tube 300 provides a space for avoiding the insertion of the surgical support tube 100 into the surgical channel of the human body, so as to prevent the surgical support tube 100 from being blocked during the insertion process, and after the surgical support tube 100 is inserted into the inner channel of the guide tube, a doctor can take out the guide tube 300 and the guide member 200 from the outside and keep the surgical support tube 100 in the surgical channel of the human body, so that the guide channel 101 provided by the surgical support tube 100 is convenient for reinserting the guide member, thereby facilitating the reconstruction of the surgical channel, performing a secondary operation, etc., and the residual blood or water, etc. in the kidney of the human body can flow out along the guide channel 101 of the surgical support tube 100, which is beneficial for draining the residual blood or water, etc. after the operation.

By way of further example, the guide tube, such as a sheath with an internal passageway, is of a degree of rigidity that allows it to be inserted directly into the body passageway along the guide member 200, and the guide tube can be split axially into two pieces for removal from the body passageway. The guide member 200 is exemplified by, but not limited to, a guide wire, an inner core, or a predetermined guide member 200 fabricated in cooperation with the surgical support tube 100 of the present invention, etc. In other words, in actual manufacturing, the shape and size of the guide member 100 or the guide tube may be designed according to the size and shape of the surgical support tube 100, for example, if the requirement is consistent with the existing guide wire or core, the guide may be performed using the existing guide wire or core, and if not, the guide member 200 to be separately manufactured to be matched with the surgical support tube 100 is required.

For convenience of explanation, the direction of entering the inside of the human body is defined as front, and the direction of outside of the human body is defined as rear.

Further, referring to fig. 1 and 2, the surgical support tube 100 includes a support tube 10 and a fixing member 20, the support tube 10 has the guide channel 101, the first end 11 (or rear end) of the support tube 10 has a guide inlet 102, and the second end 12 (or front end) has a guide outlet 103, and the guide inlet 102 and the guide outlet 103 are respectively connected to the guide channel 101. The fixing member 20 is connected to the first end 11 of the support pipe 10, the fixing member 20 has a fixing surface 201, and the fixing surface 201 is adapted to be fixed to a surface of a human body, so that the support pipe 10 is kept fixed by the fixing member 20, and falling off is prevented. Preferably, the fixing surface 201 is provided with an adhesive material to be attached and fixed on the surface of the human body, the shape of the fixing surface 201 of the fixing member 20 is preferably a wound paste shape, a nail head shape, etc., and the fixing surface 201 is provided with a medical hemostatic material and has a size suitable for covering the wound on the surface of the human body to avoid the infection of the wound of the patient, etc.

It will be appreciated that the guiding outlet 103 may also be used to drain the liquid inside the human body into the guiding channel 101 and flow out to the outside along the guiding inlet 101 of the guiding channel 101, so that the doctor can determine the internal condition of the patient through the liquid flowing out from the guiding inlet 101 of the guiding channel 101. In some alternative embodiments, the second end 12 of the support pipe 10 may further be provided with at least one drainage port 104, where the drainage port 104 communicates with the guide channel 101 to form a drainage channel, so that the liquid inside the human body is drained into the guide channel 101 through the drainage port 104 and flows out to the outside along the guide inlet 101 of the guide channel 101. Optionally, the drainage port 104 may be formed on a side wall of the second end 12 and spaced apart from the guiding outlet 103 by a certain distance, so that the guiding outlet 103 and the drainage port 104 cooperate with each other to achieve a better drainage effect.

That is, after the surgical support tube 100 is inserted into the surgical channel of the human body, the first end 11 of the support tube 10 is positioned outside the human body such that the guide inlet 102 communicates with the outside, and the second end 12 of the support tube 10 is positioned inside the human body such that the guide outlet 103 communicates with the inside of the human body, and thus, the guide member 200 can be inserted into the guide channel 101 of the support tube 10 from the guide inlet 102 and pass out into the inside of the human body from the guide outlet 103. Then, the doctor can take out the surgical support tube 100 from the human surgical channel and keep the guide member 200 in the human surgical channel so as to insert related devices through the guide member 200 for performing a secondary operation or the like. Further, the support pipe 10 of the surgical support pipe 100 is kept fixed in the human body surgical path by the fixing member 20, so that the support pipe 10 is prevented from falling off, expanding a wound of the human body surgical path, sinking into the inside of the human body surgical path, or the like due to the body motion (such as walking or turning over) of the patient, thereby providing a safety guarantee.

Preferably, as shown in fig. 4A and 4B, the support tube 10 has a normal state in which the support tube 10 has a first outer diameter R1 and an expanded state in which the support tube 10 has a second outer diameter R2, the first outer diameter R1 being smaller than the second outer diameter R2, and the support tube 10 is changed from the normal state to the expanded state in which the support tube 10 absorbs liquid, so that the support tube 10 is changed from the normal state to the expanded state after being placed in a human surgical channel. As shown in fig. 4A, X is the axis of the support pipe 10, D1 is the pipe wall thickness of the support pipe 10 in the normal state, R1 is the first outer diameter of the support pipe 10 in the normal state, as shown in fig. 4B, D2 is the pipe wall thickness of the support pipe 10 in the expanded state, R2 is the second outer diameter of the support pipe 10 in the expanded state, D1< D2, and R1< R2. That is, the support pipe 10 is inserted into the human operation channel in the normal state, and the support pipe 10 expands (from the normal state to the expanded state) after absorbing the liquid due to the residual liquid such as blood or water in the human operation channel, so that the outer wall of the support pipe 10 is tightly attached to the inner wall of the human operation channel after expansion, so as to block the capillary blood hole of the inner wall of the human operation channel, thereby achieving the effect of compression hemostasis.

It will be appreciated that, in the normal state, the first outer diameter R1 of the support pipe 10 may be slightly smaller than the inner diameter of the human body operation channel, so that the support pipe 10 may be smoothly inserted into the human body operation channel in the normal state, and in the expanded state, the second outer diameter R2 of the support pipe 10 may be slightly larger than the inner diameter of the human body operation channel, so that the support pipe 10 may slightly press the inner wall of the human body operation channel in the expanded state, and may not be excessively expanded, so as to avoid damage to the patient, or expand the wound range of the human body operation channel, etc.

It should be noted that the surgical support tube 100 may include a plurality of different specifications or models, and the first outer diameter or the second outer diameter of the support tube 10 of the surgical support tube 100 may be different in size or dimension to be adapted to the human surgical passages of different inner diameter sizes, so that a doctor may select a surgical support tube 100 of an appropriate specification according to the human surgical passages of different inner diameter sizes.

Preferably, the support tube 10 of the surgical support tube 100 may comprise an expandable material or structure such that the support tube 10 can be expanded by absorbing a liquid. It should be noted that the outer wall shape of the support tube 10 before and after expansion may be kept in a cylindrical-like shape or an elliptical-like shape, etc., and the outer wall surface is flat without obvious protrusions, so as to avoid uneven compression of the human operation channel, etc., and facilitate removal of the support tube 10, etc. from the human operation channel.

Further, the outer wall of the support tube 10 of the surgical support tube 100 includes a hemostatic material so that the hemostatic material contacts the inner wall of the human surgical channel after the support tube 10 is placed in the human surgical channel, thereby achieving a hemostatic effect.

In some embodiments, the support tube 10 of the surgical support tube 100 comprises a degradable material, such as a medical material that is degradable in the human body, or the like, such that the support tube 10 gradually degrades over a period of time within the human surgical channel, leaving the guide channel 101 for a period of time. For example, the support tube 10 or the portion of the support tube 10 to be placed in the human body operation channel is made of degradable material, that is, after the support tube 10 of the support tube 100 is placed in the human body operation channel, a doctor may observe the condition in the patient's body through the guide channel 101 of the support tube 10, if a secondary operation is required, the guide member 200 is passed through the guide channel 101 of the support tube 10 which is not degraded or is not degraded completely so as to construct the operation channel again, and if a secondary operation is not required, the portion of the support tube 10 to be placed in the human body operation channel is degraded gradually with the lapse of time, as shown in fig. 3G, and after the degradation, the portion of the support tube 10 located outside the human body may be automatically dropped or manually cut off, etc.

It can be understood that the degradation time of the support pipe 10 of the support pipe 100 for operation can be adjusted according to the pipe wall thickness of the support pipe 10, and the support pipe 10 of the support pipe 100 for operation gradually degrades after contacting the inner wall of the human operation channel, so that the pipe wall outer diameter of the support pipe 10 is gradually reduced, and the pressing force on the inner wall of the human operation channel is reduced, so that the patient can heal the wound of the human operation channel conveniently.

It should be noted that, as shown in fig. 4C, the wall thickness of the support tube 10 decreases from the first end 11 to the second end 12, that is, the wall thickness D3 near the first end 11 is greater than the wall thickness D4 near the second end 12, so that after the support tube 10 is placed in the operation channel of the human body, the duration of complete degradation of the support tube 10 near the interior of the human body is shorter than the duration of complete degradation of the support tube 10 near the exterior of the human body, so as to avoid that the support tube 10 is completely degraded first and the support tube 10 is not completely degraded yet near the interior of the human body, resulting in damage to the internal organs of the human body due to actions of the patient in the non-completely degraded portion of the support tube 10 inside the human body.

In some alternative embodiments, as shown in fig. 5A, the support tube 10 of the surgical support tube 100 includes an outer tube 13 and an inner tube 14, the outer tube 13 and the inner tube 14 are layered, both the outer tube 13 and the inner tube 14 are made of degradable materials, the inner tube 14 forms the guide channel 101, and since the outer tube 13 is located outside the inner tube 14, so that the outer tube 13 is degraded first, the inner tube 14 is degraded later, and the duration of the guide channel 101 is increased. Alternatively, the outer tube 13 may be sleeved on the outer side of the inner tube 14, the inner diameter of the inner channel of the outer tube 13 is slightly greater than or equal to the outer diameter of the inner tube 13, and the inner channel of the inner tube 13 is the guide channel 101, that is, the outer tube 13 of the support tube 10 and the inner tube 14 form a double-tube structure, and it will be understood by those skilled in the art that the support tube 10 may also have a triple-tube structure, a four-tube structure, or a multi-layer tube structure. Alternatively, the outer tube 13 may be integrally formed on the outer side of the inner tube 14, and the outer tube 13 may have a partial difference in structure or density from the inner tube 14.

Further, as shown in fig. 5B, the support pipe 10 further includes a barrier layer 15, where the barrier layer 15 is disposed between the outer pipe 13 and the inner pipe 14 to extend the degradation period of the inner pipe 14, and further provide the retention period of the guide channel 101. Optionally, a blocking cavity 151 is formed between the outer tube 13 and the inner tube 14, and the inner wall of the outer tube 13, the outer wall of the inner tube 14, and the blocking cavity 151 form the blocking layer 15. Further, the barrier layer 15 comprises a barrier material 152, the barrier material 152 is filled between the outer tube 13 and the inner tube 14, that is, the barrier material 152 is filled in the barrier cavity 151, and preferably the barrier material 152 is a degradable medical material. Accordingly, the degradation time of the inner tube 14 may be further hindered due to the presence of the barrier layer 151 to extend the duration of the presence of the guide channel 101.

In some variant embodiments, the outer tube 13 is made of a degradable material and the inner tube 14 is made of a non-degradable material, so that the outer tube 13 gradually degrades over a period of time in order to assist the patient in healing the wound, while the inner tube 14 is non-degradable to retain the guide channel 101 in order to facilitate the observation of the patient's condition through the guide channel 101 or to perform a secondary operation or the like. That is, after the support tube 10 of the support tube 100 for surgery is placed in the human surgery channel, the outer tube 13 of the support tube 10 is gradually degraded over a period of time, so that the outer diameter size of the support tube 10 is reduced in order to assist the patient in healing the wound, and the inner tube 14 remains in the human surgery channel to provide the guide channel 101 (without being limited by degradation time), the physician can take the non-degradable inner tube 14 out of the human surgery channel if a secondary surgery is not required.

Optionally, the outer tube 13 includes an expandable material or structure, so that the outer tube 13 has the normal state and the expanded state, that is, the outer tube 13 can be expanded, so that the expanded outer wall of the outer tube 13 is in close contact with the inner wall of the human surgical channel, thereby achieving the compression hemostasis effect. Alternatively, the inner tube 14 need not be enlarged to avoid impeding passage of the guide member 200 through the guide channel 101 by reducing the inner diameter of the guide channel 101.

Preferably, as shown in fig. 1 and 2, the fixing member 20 includes a fixing portion 21 and a closing portion 22, the fixing portion 21 is integrally connected with the first end 11 of the support pipe 10, the fixing portion 21 has the fixing surface 201 to be fixed to the surface of the human body, the fixing portion 21 has a through hole 202, the through hole 202 communicates with the guide inlet 102, and the closing portion 22 is provided to the fixing portion 21 in such a manner as to close the through hole 202. In other words, the closing portion 22 is operable to open or close the through hole 202, thereby opening or closing the guide inlet 102 of the guide passage 101.

It will be appreciated that the first end 11 of the support pipe 10 is substantially flush with the surface of the fixing surface 201, so as to avoid inconvenience to the patient's movement due to protruding from the surface of the human body.

It should be noted that the thickness of the inner tube 14 may be uniform, and the thickness of the outer tube 13 may be gradually reduced from the first end 11 to the second end 12. The wall thickness of the inner tube 14 and the outer tube 14 is not limited herein.

Optionally, the outer tube 13 and the inner tube 14 are made of degradable materials, the outer tube 13 and the inner tube 14 are integrally connected to the fixing portion 21, or the inner tube 14 is integrally connected to the fixing portion 21, after the support tube 10 of the support tube 100 is placed in a human body operation channel, the outer tube 13 and a part of the inner tube 14 gradually degrade with a part of the outer tube 13 and a part of the inner tube 14 located in the human body operation channel, and finally, the fixing member 20 and (if any) an undegraded part of the outer tube 13 and a part of the inner tube 14 exist outside the human body, so that a doctor or a patient can conveniently remove the degraded support tube 100 from the body surface.

Alternatively, if the outer tube 13 is made of a degradable material, the inner tube 14 is made of a non-degradable material, the outer tube 13 and the inner tube 14 are integrally connected to the fixing portion 21, or the inner tube 14 is integrally connected to the fixing portion 21, after the support tube 10 of the support tube 100 is placed in the human operation channel, the outer tube 13 gradually degrades along with the portion located in the human operation channel, and finally the fixing member 20 and the inner tube 14 connected to the fixing member 20 and if any, the non-degraded portion of the outer tube 13 remain.

That is, the fixing member 20 has an open state in which the guide inlet 102 of the guide passage 101 communicates with the outside through the through hole 202 to facilitate the doctor to observe the patient through the guide passage 101 or to insert the guide member 200 from the through hole 202 into the guide passage 101 to facilitate the secondary operation or the like. In the closed state, the closing portion 22 closes the through hole 202 so that the guide inlet 102 of the guide passage 101 is closed, preventing outflow of liquid such as blood from the guide inlet 102 of the guide passage 101 or infection or the like to the patient due to exposure of the guide inlet 102.

Further, the closing portion 22 has a cylinder 221, and the cylinder 221 is mounted to the through hole 202 of the fixing portion 21 in an interference fit. That is, the outer diameter of the cylinder 221 is slightly larger than the inner diameter of the through hole 202, so that the cylinder 221 is detachably mounted on the through hole 202 of the fixing portion 21 in an interference fit manner, and the cylinder 221 can also seal the through hole 202 to prevent the liquid in the guide channel 101 from flowing out or the external air from entering the guide channel 101 to cause infection.

Further, the fixing member 20 further includes a connecting portion 23, and the connecting portion 23 is movably integrally connected between the fixing portion 21 and the closing portion 22, so as to avoid the closing portion 22 from being lost. The connecting portion 23 has a certain toughness, so that the connecting portion 23 is operated to bend, so that the fixing member 20 is switched between the open state and the closed state.

Optionally, the closing portion 22 is screwed to the fixing portion 21, specifically, the fixing portion 21 has a first thread, and the closing portion 22 has a second thread, and the first thread is screwed in cooperation with the second thread. The first screw thread is formed on the inner wall of the through hole 202, and the second screw thread is formed on the outer wall of the cylinder 221, so that the cylinder 221 is detachably screw-coupled in the through hole 202 of the fixing portion 21.

In some variant embodiments, as shown in fig. 6, the fixing portion 21 may include a first coupling portion 211, and the closing portion 22 may include a second coupling portion 222, and the first coupling portion 211 and the second coupling portion 222 are detachably coupled together, so that the fixing member 20 is switched between the open state and the closed state. It should be understood that the coupling manner of the first coupling portion 211 and the second coupling portion 222 includes, but is not limited to, threaded connection, magnetic connection, adhesive connection, clamping connection, etc., which are not limited herein.

In some alternative embodiments, the first end 11 of the support pipe 10 passes through the through hole 202 of the fixing portion 21, and the closing portion 22 is disposed on the fixing portion 21 in such a manner as to close the guide inlet 102. That is, in the open state, the guide passage 101 communicates with the outside through the guide inlet 102, and in the closed state, the closing portion 22 closes the guide inlet 102. It will be appreciated that the first end 11 of the support pipe 10 may be integrally connected to the inner wall of the through hole 202 of the fixing portion 21, or the first end 11 of the support pipe 10 may be detachably passed through the through hole 202 of the fixing portion 21, the outer diameter size of the first end 11 being slightly smaller than the inner diameter size of the through hole 202. Alternatively, the closing portion 22 may have a closing groove, the closing portion 22 being detachably mounted to the fixing portion 21, in the closing state, the closing portion 22 being mounted to the fixing portion 21, the closing groove forming a chamber with the fixing portion 21 so that the first end 11 of the support duct 10 is closed in the chamber, thereby closing the guide inlet 102 of the guide duct 101, in the opening state, the closing portion 22 being detached, the first end 11 of the support duct 10 being exposed to the outside, so that the guide inlet 102 of the guide duct 101 communicates with the outside, thereby facilitating the doctor to observe the patient through the guide inlet 102 of the guide duct 101, or the guide element 200 being inserted into the guide duct 101 from the guide inlet 102, thereby facilitating the secondary operation or the like.

In some alternative embodiments, as shown in fig. 7A, the fixing member 20 includes a fixing portion 21A and a connecting portion 23A, the connecting portion 23A is movably integrally connected between the first end 11 of the support pipe 10 and the fixing portion 21A, and the fixing portion 21A has the fixing surface 201. Specifically, the fixing member 20 has an open state in which the fixing surface 201 of the fixing portion 21A is fixed to the surface of the human body, the fixing portion 21A closes the guide inlet 102, and a closed state in which the fixing portion 21A is detached from the surface of the human body, and the guide inlet 102 of the guide passage 101 communicates with the outside. The connecting portion 23A has a certain toughness, and the connecting portion 23A is operatively bent such that the fixing member 20 is switched between the open state and the closed state, so that a doctor or a patient can operate the fixing member 21 to close or open the guide inlet 102 of the guide passage 101. Further, the fixing member 20 further includes a sealing portion 22A, where the sealing portion 22A is integrally connected to the fixing portion 21A, and the sealing portion 22A is located on the fixing surface 201 of the fixing portion 21A and protrudes from the fixing surface 201 to form a protruding structure (such as a cylinder, etc.), and the sealing portion 22A is adapted to detachably seal the guiding inlet 102 of the support pipe 10.

Alternatively, as shown in fig. 7B, the fixing portion 21A has a groove portion 212A, the groove portion 212A forming a groove having a size larger than that of the first end portion 11 of the support duct 10, the groove being located on the same side as the fixing surface 201 so that an opening of the groove is closed by a human body surface to form a closed cavity when the fixing surface 201 is fixed to the human body surface so that the first end portion 11 of the support duct 10 is closed in the closed cavity, so that the guide inlet 102 of the guide passage 101 is closed.

The second end 12 (or front end) of the support tube 10 of the surgical support tube 100 has a natural state in which the second end 12 of the support tube 10 of the surgical support tube 100 is bent and a guiding state in which the second end 12 of the support tube 10 of the surgical support tube 100 is adapted to straighten under the guiding action of the guiding element 200. That is, in use, the support tube 10 of the surgical support tube 100 can be straightened under the guide of the guide member 200 to be inserted into a human surgical channel, and after the insertion into the human surgical channel, the guide member 200 is withdrawn, and the second end 12 of the support tube 10 of the surgical support tube 100 is restored to the natural state to be bent. In other words, the second end 12 of the support tube 10 of the surgical support tube 100 is a change in bending elasticity, which is related to morphological demands of human organs (e.g., kidneys, etc.) in use, without tips or protruding parts, thereby reducing adverse stimulus effects to human organs.

It should be noted that, since the insertion of the length of the support tube into the kidney of the human body affects the feeling of the user, if it is too long, adverse stimulus reaction such as kidney loss may be caused to the patient. If too short or too close to the outside of the human body, it is disadvantageous to guide the outflow of residual blood or water or the like from the inside of the kidney of the human body, or to insert the guide element into a desired position or the like. On the other hand, the support tube 10 of the surgical support tube 100 is provided with a balloon, which cannot be far from the kidney because it serves to fix the support tube and to stop bleeding by compression. Therefore, the surgical support tube 100 according to the present invention can reduce the stimulating effect of the end on the inside of the human kidney because the second end 12 of the support tube 10 of the surgical support tube 100 is naturally bent when it is in a natural state, i.e., in the human kidney, which is advantageous for relatively reducing the requirement for the medical staff to place the support tube at an operation level.

As shown in fig. 8 and 9, the support tube 10 of the surgical support tube 100 includes a drainage section 110, a balloon section 120, and a delivery section 130, the drainage section 110 being located in front of the balloon section 120, and the delivery section 130 being located behind the balloon section 120. That is, in use, the drainage segment 110 is the portion that first enters the interior of the human body and the delivery segment 130 is the portion that is adjacent to the exterior of the human body.

The drainage section 110 is configured to be installed in the kidney of a human body to drain the fluid when the support tube 10 of the surgical support tube 100 is used and the relative positional relationship between the support tube and the human body organ, the balloon section 120 is configured to be installed in the kidney operation port of the human body to substantially fix the surgical support tube 100, and the delivery section 130 is configured to be installed in the human body operation path from the kidney to the human body epidermis and to connect the fixing member 20. That is, in use, the drainage tube and the balloon segment 120 are positioned within the kidney, and the delivery segment 130 is positioned within the body's surgical passageway between the kidney and the epidermis of the body and extends outside the body.

From the function of the sections of the surgical support tube 100, the drainage section 110 serves to guide fluid into the support tube 10 of the surgical support tube 100, or the drainage section 110 serves to guide fluid such as blood or water remaining in the kidneys of the human body. The balloon section 120 is used for fixing the support tube 10 of the surgical support tube 100, or the balloon section 120 is used for fixing the surgical support tube 100 at the kidney operation site of the human body, the delivery section 130 is used for delivering the liquid which enters the support tube 10 of the surgical support tube 100 to the outside, in other words, the delivery section 130 extends to the fixing piece 20 outside the human body along the operation channel of the human body, and delivering the liquid to the outside along the guide inlet 102.

In one embodiment of the invention, the drainage segment 110, the balloon segment 120, and the delivery segment 130 are integrally connected. For example, but not limited to, the surgical support tube 100 is formed at the time of manufacture by means of a mold or blow molding, injection molding, etc. one or more times, and the drainage segment 110, the balloon segment 120, and the delivery segment 130 are thereby formed one or more times. In another embodiment of the present invention, the drainage segment 110, the balloon segment 120, and the delivery segment 130 are removably connected.

The drainage segment 110, the balloon segment 120, and the delivery segment 130 are substantially flexibly and linearly connected. The drainage section 110, the balloon section 120 and the delivery section 130 are sequentially arranged from inside to outside or from top to bottom.

In the natural state, the drainage section 110 is bent, and in the guide state, the drainage section 110 straightens under the guide action of the guide element 200. In other words, the straightening or bending of the drainage segment 110 is controlled by the action of the guiding element 200. In the natural state, the drainage segment 110 is curved inwardly, and in the guided state, the drainage segment 110 is substantially straightened.

In one embodiment of the present invention, the surgical support tube 100 includes a membrane layer that is covered by the guide inlet 102 (e.g., an outer port) of the guide channel 101, that is, the guide inlet 102 of the guide channel 101 is not in communication with the outside. In use, a user may penetrate the film layer, or leave the film layer, as desired.

As shown in fig. 10 and 11, the support tube 10 of the surgical support tube 100 includes an inflation port 140 and an inflation tube 150, the inflation port 140 being in communication with the inflation tube 150, the inflation tube 150 extending along the delivery segment 130 and being in communication with the balloon segment 120. The air bag section 120 has an air chamber 121, and the air inflation pipe 150 is connected to the air chamber 121, so that the air bag section 120 forms an inflated air bag by inflating the air inflation port 140 and the air inflation pipe 150 to inflate the air chamber 121.

It should be noted that the front end portion 1501 of the air pipe 150 passes through the fixing portion 21 and is integrally connected to the fixing portion 21, that is, the front end portion 1501 of the air pipe 150 is kept fixed by the fixing portion 21 to ensure safety. It is understood that the inflation interface 140 may be operable to close or open the inflation conduit 150.

In one embodiment of the present invention, the inflation tube 150 is integrally formed from the inner wall of the support tube 10 of the surgical support tube 100, that is, the tube body forming the inflation tube 150 is integrally connected to the inner wall of the support tube 10 of the surgical support tube 100. In another embodiment of the present invention, the inflation conduit 150 is formed of a separate conduit and is embedded within the wall of the delivery segment 130. The inflation interface 140 is disposed at a location proximate the exterior of the delivery segment 130.

The drainage section 110 has at least one drainage groove 111, the drainage groove 111 has an opening 112, the drainage groove 111 is in transverse communication with an external space through the opening 112, the drainage groove 111 extends from the outer end of the drainage section 110 to the rear end to a predetermined position, and the drainage groove 111 is in longitudinal communication with the air bag section 120. It should be noted that, since the drainage segment 110 is in the curved region in the natural state, that is, the drainage groove 111 is in a curved shape, the drainage groove 111 forms a drainage curve, rather than a straight drainage. In this way, the straight plane or the bearing surface of the large area is not formed, so that the probability of direct accumulation of particles such as blood clots can be reduced to a certain extent.

The drainage segment 110 has a first inner channel for guiding the guide element 200 through. The first inner channel forms the pilot outlet 103. The first inner channel is located at a substantially central position of the drainage segment 110, and extends along the length direction of the drainage segment 110. The drainage groove 111 is located outside the first inner channel. Still further, the plurality of drainage grooves 111 are equally distributed around the first inner channel of the drainage section 110.

The balloon segment 120 has an inflated state and an uninflated state, in which the balloon segment 120 is inflated such that the surface of the balloon segment 120 spherically protrudes from the surface of the support tube 10 of the surgical support tube 100. In the uninflated state, the balloon segment 120 is contracted and its surface conforms to the surface of the delivery segment 130. That is, in the inflated state, the balloon segment 120 forms a balloon protruding from the surface of the delivery segment 130.

The balloon segment 120 has an inflation lumen 121 and a second internal passageway, the inflation lumen 121 being in communication with the inflation conduit 150 to facilitate inflation of the inflation lumen 121 with gas through the inflation conduit 150. The inflation interface 140 communicates with the inflation conduit 150. That is, the inflation port 140, the inflation conduit 150 and the inflation lumen 121 communicate to form an inflation channel. When the surgical support tube 100 is used, after the balloon segment 120 is introduced into a predetermined position inside the human body, the balloon segment 120 is inflated to the inflation lumen 121 through the inflation channel by an inflation device so as to be fixed inside the human body, and hemostasis is achieved by compression of the inflated balloon. The surgical support tube 100 further includes a one-way valve sealingly coupled to the inflation port 140. That is, the airbag section can be inflated by the inflator, and when the airbag section 120 is inflated, the check valve unidirectionally closes the inflation port 140, so that the airbag section 120 is maintained in the inflated state.

The inflation lumen 121 surrounds the exterior of the second interior passage to form a generally spherical balloon or an annular support and fixation balloon around the second interior passage.

The second internal passage of the balloon segment 120 longitudinally communicates the drainage segment 110 and the delivery segment 130. Further, the second inner channel communicates the first inner channel of the drainage section 110 with the drainage groove 111. In other words, the second inner channel is used for passing the guiding element 200 and delivering liquid. The second inner channel communicates with the first inner channel forming part of the guide channel 200 of the drainage segment 110. The second inner channel and the drainage groove 111 of the drainage section 110 form part of a drainage channel.

When the surgical support tube 100 is used, the support tube 10 of the surgical support tube 100 is guided by the guide member 200 into a human surgical channel while the balloon segment 120 is in the uninflated state and the drainage segment 110 is in the guided state by the guide member 200, and after the drainage segment 110 and the balloon segment 120 reach a predetermined position inside the human body, the balloon segment 120 is inflated so that the balloon segment 120 is maintained in the inflated state.

The delivery segment 130 has a third internal passage that communicates longitudinally with the second internal passage. The third inner channel forms the pilot inlet 102. Integrally, the drainage groove 111, the second inner channel and the third inner channel of the drainage section 110 communicate to form the integral drainage channel. The first, second and third internal channels of the drainage segment 110 communicate to form the guide channel 200. That is, upon guidance, the guide member 200 passes through the third inner channel, the second inner channel, and the first inner channel, thereby placing the drainage segment 110 in the guided state and placing the entire surgical support tube 100 in a substantially straightened, guided state, thereby accessing the interior of the human body via the human body surgical passageway. In use, liquid inside the human body may be transported from the introduction inlet 102 to the outside via the introduction groove 111, the second inner passage and the third inner passage.

The first inner channel of the drainage segment 110 communicates with the second inner channel and the third inner channel to form the guide channel 200, so that the drainage segment is guided to be transferred from the natural state to the guiding state through the guide element 200 to be conveniently introduced into the human body.

The delivery segment 130 is coupled to the anchor 20 to facilitate maintaining the surgical support tube 100 stationary.

The drainage section 110 has at least two drainage grooves 111, one of the drainage grooves 111 extending from an outer end of the drainage section 110 to a rear section to the balloon section 120, and the other of the drainage grooves 111 extending from the outer end of the drainage section 110 to the rear end to a predetermined distance above the inflation section. In other words, the drainage segment 110 has at least one fully open drainage channel and at least one partially closed drainage channel. The fully-opened drainage groove is longitudinally communicated with the second inner channel, the whole of the second inner channel is transversely communicated with the outside, the partially-closed drainage groove is longitudinally communicated with the second inner channel, and the transverse part of the second inner channel is communicated with the outside. That is, the fully opened drainage groove extends upward from the balloon section 120, and the partially closed drainage groove extends upward from a predetermined length position above the balloon section 120.

According to this embodiment of the invention, the drainage segment 110 has at least one sealing zone, which seals off a partial opening 112 area of at least one of the drainage grooves 111, so as to form the partially sealed drainage groove. In one embodiment of the present invention, the semi-enclosed region extends upwardly from the top of the balloon segment 120 a predetermined distance covering the area of the outer opening 112 of the portion of at least one of the drainage grooves 111. That is, in the position where the closed region is located, the drainage groove 111 communicates with the balloon section 120 in the longitudinal direction or along the extending direction of the drainage section 110, and in the transverse direction or in the direction where the drainage groove 111 communicates with the external space, the opening 112 partial region of the drainage groove 111 is covered so as not to communicate with the outside.

The drainage segment 110 includes a first tube body and a guide vane radially extending outward from an outer wall of the first tube body by a predetermined height in a lateral direction to form the drainage groove 111, and longitudinally extending along the outer wall of the first tube body by a predetermined length in a longitudinal direction. That is, the guide vane partitions the space outside the first pipe body to form the drainage groove 111. The first tube body forms the first inner channel. The vane rear outer side is connected to the balloon section 120.

The drainage segment 110 includes a plurality of guide vanes, which are symmetrically distributed outside the first pipe body, so as to form a plurality of drainage grooves 111. The plurality of drainage grooves 111 are each independently communicated with the second inner passage. According to this embodiment of the present invention, the drainage segment 110 includes 6 guide vanes, 6 guide grooves 111 are formed at intervals, and a first guide groove, a second guide groove, a third guide groove, a fourth guide groove, a fifth guide groove and a sixth guide groove are formed from the inside of the bend to the outside. The 6 drainage grooves 111 are respectively and independently communicated with the second inner channel.

It should be noted that, in one embodiment of the present invention, the first tube and the plurality of guide vanes may be integrally formed at a time during the manufacturing and forming process, that is, the first tube and the plurality of guide vanes may be integrally connected at a time without any obvious interface or without being formed in steps, and in another embodiment, the first tube may be formed first and then the plurality of guide vanes may be formed outside the first tube during the manufacturing and forming process. Preferably in an integrally formed manner. It should be noted that, in this embodiment of the present invention, the drainage segment 110 is exemplified by forming 6 guide vanes and forming 6 drainage grooves separately, but in other embodiments of the present invention, the drainage segment 110 may also be formed with guide vanes in number and arrangement, such as 2,3, 4,5 and above, and the arrangement is an asymmetric arrangement extending longitudinally, and the present invention is not limited in this respect.

According to an embodiment of the invention, the position of the closed area of the drainage channel 111 and the curvature of the drainage segment 110 cooperate with each other. In other words, the open communication arrangement of the drainage groove 111 with the outside is different according to the bending position of the drainage segment 110. The length of the opening 112 of the drainage groove 111 extending in the longitudinal direction is adjusted by controlling the longitudinal extension of the sealing area. That is, the partially closed drainage grooves of different opening 112 lengths are formed at different length positions. On the other hand, the number or position of the drainage grooves 111 to be closed is controlled by the size of the area of the closing area or the number of the closing areas. In other words, the size, the corresponding positions and the number of the outer opening areas of the drainage grooves 111 are adjusted by the arrangement of the sealing area and the cooperation of the drainage grooves 111. For example, but not limited to, taking an arc line of the curve outside the drainage section 110 as a reference position for cutting, the drainage grooves 111 after the drainage ends are transversely unfolded are arranged, in one embodiment, the length of the closed area may be gradually reduced from the central position to two sides, that is, symmetrically distributed in steps, and correspondingly, the lengths of the plurality of drainage grooves 111 are gradually increased from the center to the lengths of the openings 112 on two sides, and are symmetrically distributed in inverted steps corresponding to the closed area. In another embodiment of the present invention, the length of the closed region may be gradually reduced from a predetermined position, that is, a unidirectional stepped arrangement is formed, and accordingly, the lengths of the plurality of the drainage grooves 111 are gradually increased from the predetermined position. In another embodiment of the present invention, the plurality of the drainage grooves 111 are varied at intervals, for example, one drainage groove 111 is partially closed, and the adjacent drainage groove 111 is completely opened, i.e. the closed area is not provided. In other words, the openings 112 of the plurality of the drainage grooves 111 are arranged at intervals in the closed region.

According to this embodiment of the invention, the opening 112 of the partially closed drainage channel increases in length from the inward curve of the drainage segment 110 to the outward curve. In other words, the semi-closed longitudinal extension length located inside the drainage section 110 is longest, that is, the opening 112 of the drainage groove 111 is the smallest, the longitudinal extension length of the adjacent semi-closed region is reduced by a predetermined length, and the opening 112 of the drainage groove 111 is increased by a predetermined length, in turn, until the closed region is not provided, that is, the opening 112 of the drainage groove 111 is all communicated with the outside.

For example, in this embodiment of the present invention, the drainage segment 110 includes 306 guide vanes and forms 306 guide vanes 111, which are respectively a first guide vane, a second guide vane, a third guide vane, a fourth guide vane, a fifth guide vane, and a sixth guide vane, 306 guide vanes are respectively a first guide vane, a second guide vane, a third guide vane, a fourth guide vane, a fifth guide vane, and a sixth guide vane, and includes 305 closed regions, which are respectively a first closed region, a second closed region, a third closed region, a fourth closed region, and a fifth closed region, the first closed region being disposed in the first guide vane, the second closed region being disposed in the second guide vane, the third closed region being disposed in the third guide vane, the fourth closed region being disposed in the fifth guide vane, the fifth closed region being disposed in the sixth guide vane, and the fourth closed region being disposed in the fourth guide vane, the drainage segment being located outside the curve 110. The curved spiral central plane of the drainage section is taken as a reference plane, the first drainage groove is centrally symmetrical with respect to the reference plane, the fourth drainage groove is centrally symmetrical with respect to the reference plane, the second drainage groove and the sixth drainage groove are symmetrically distributed with respect to the reference plane, the third drainage groove and the fifth drainage groove are symmetrically distributed with respect to the reference plane, and correspondingly, the first closed region is centrally symmetrical with respect to the reference plane, the second closed region is centrally symmetrical with respect to the reference plane, and the third closed region and the fifth closed region are symmetrically distributed with respect to the reference plane. Further, the length of the first enclosed region is greater than the length of the second enclosed region, the length of the second enclosed region is greater than the length of the third enclosed region, the length of the second enclosed region is the same as the length of the fifth enclosed region, and the length of the third enclosed region is the same as the length of the fourth enclosed region. That is, with respect to both sides of the reference plane, the first, second, and third closed regions form a stepwise change of gradually decreasing length, and the first, fifth, and fourth closed regions form a stepwise change of gradually decreasing length.

For example, in another embodiment of the present invention, with reference to the curved spiral central plane of the drainage end, the first drainage groove, the second drainage groove, and the third drainage groove are located on two sides of the spiral reference plane, respectively, and the first drainage groove and the sixth drainage groove are symmetrically located on an inner curve of the drainage section, and the fifth drainage groove and the sixth drainage groove are located on an outer curve of the drainage section 110. In other words, taking a split state as an example, the first drainage groove, the second drainage groove and the third drainage groove are located at one side of a central symmetry line, the fourth drainage groove, the fifth drainage groove and the sixth drainage groove are located at the other side of the central symmetry line, and the two sets of drainage grooves are symmetrically distributed about the central symmetry line. In other words, the first drainage groove and the fourth drainage groove have the same length, are symmetrically distributed about the symmetry line, the second drainage groove and the fifth drainage groove have the same length, are symmetrically distributed about the symmetry line, and the third drainage groove and the sixth drainage groove have the same length, are symmetrically distributed about the symmetry line. Further, the drainage segment 110 is provided with 304 closed areas, which are a first closed area, a second closed area, a third closed area and a fourth closed area, respectively, where the first closed area is disposed in the first drainage groove, the second closed area is disposed in the second drainage groove, the third closed area is disposed in the fifth drainage groove, and the fourth closed area is disposed in the sixth drainage groove. The first and fourth enclosed regions have the same length, and the second and third enclosed regions have the same length. The length of the first enclosed region is greater than the length of the second enclosed region, and the length of the fourth enclosed region is greater than the length of the third enclosed region.

For example, in another embodiment of the present invention, the drainage segment 110 includes 306 guide vanes forming 306 guiding grooves 111, which are respectively the first guiding groove, the second guiding groove, a third guiding groove, a fourth guiding groove, a fifth guiding groove and a sixth guiding groove, where the first guiding groove is located at an inner curve of the drainage end, the fourth guiding groove is located at an outer curve of the drainage segment 110, and the drainage segment 110 includes 303 closed areas, which are respectively a first closed area, a second closed area and a third closed area, where the first closed area is disposed on the first guiding groove, the second closed area is disposed on the third guiding groove, and the third closed area is disposed on the fifth guiding groove. That is, the plurality of closed regions are alternately arranged at intervals in the plurality of drainage grooves.

It should be noted that, in the embodiment of the present invention, the closed area is provided in at least a partial area of the drainage groove 111 located at the inner curve, that is, the drainage groove 111 is formed to partially close the drainage groove 111, the closed area of the closed area is reduced, that is, the opening 112 is increased, or the fully opened drainage groove is formed, so that the curve turning of the drainage section 110 and the opening size of the drainage groove 111 are matched, based on this selection, the drainage section 110 can further reduce the risk of blockage due to the fact that the bending curvature of the area located at the inner side of the drainage section 110 is greater than the outer bending curvature, or the inner side is slightly bent, the outer side is slightly bent, so that the inner side is mainly subjected to the extrusion force, the outer side is mainly the tensile force, the extrusion bending deformation is easily generated inside the guide vane based on the elastic plane structure of the guide vane, and by the provision of the closed area, the position of the guide vane can be relatively fixed, so that the deformation of the guide vane can be reduced, thereby reducing the space caused by the deformation and the blocking or the blood blocking phenomenon caused by the particles can be reduced.

Further, according to an embodiment of the present invention, the drainage segment 110 includes at least one protection blade, which is disposed at the outer end of the guide vane to prevent the end of the guide vane from directly contacting the outside, for example, to prevent the planar end of the guide vane from directly contacting the human endotracheal membrane, causing an adverse stimulus reaction.

Preferably, the protection blades are arranged at the outer ends of the guide vanes in an arc shape. In other embodiments of the invention, the guard blades may also be other shapes.

In this embodiment of the invention, a plurality of the guard blades are provided at the outer ends of the guide vanes, respectively, that is, the number of the guard blades and the number of the guide vanes are matched. A gap is formed between two adjacent guard blades, and the gap communicates the drainage groove 111 with the outside.

The plurality of guard vanes are spaced apart to form a generally annular outer surface, that is, integrally form a relatively flat arcuate surface rather than a striped spaced surface directly formed by the end surfaces of the vanes. In other words, the irritation of the guide vane is alleviated by the guard blades. The protective blades cover the outside of the guide vane in an arc shape, and gaps are formed between adjacent protective blades, so that a protective guide wall which tends to the circumference is formed under the condition that liquid can pass through.

In one embodiment of the invention, the guard blades extend on both sides of the guide vane, i.e. form a substantially T-shaped structure.

In another embodiment of the present invention, the guard She Shanxiang extends to one side of the vane, i.e., the guard blade and the vane form an L-shaped structure, as the present invention is not limited in this respect.

In this embodiment of the present invention, the surgical support tube 100 further has a flushing channel, specifically, the surgical support tube 100 includes a flushing port, the flushing port is disposed at the delivery section 130, and the flushing port communicates with the third internal channel to form the flushing channel.

When the surgical support tube 100 is used, firstly, the surgical support tube 100 is passed through the surgical support tube 100 by a guiding element 200, so that the support tube is in the guiding state, namely, the drainage section 110 is straightened, then, the surgical support tube 100 is guided by the guiding element 200 to pass through a human body operation channel, and then, the guiding element 200 is pulled out, so that the surgical support tube 100 is in the natural state, namely, the drainage section 110 is naturally bent, and then, liquid such as blood or water is drained, when partial blockage occurs, or the blood flow is not smooth, or an external flushing device is connected to the flushing interface at regular time, so that the flushing channel is used for flushing the inside, flushing the partial blockage, or cleaning the drainage channel, thereby preventing the risk of blockage.

In the first embodiment of the present invention, the description is given taking the case that the surgical support tube includes the drainage grooves, and in other embodiments of the present invention, the surgical support tube may further include other numbers of the drainage grooves and other arrangements. For example, the surgical support tube 100 includes two drainage grooves 111, a first drainage groove and a second drainage groove, which are symmetrically disposed opposite to each other.

Optionally, the surgical support tube 100 includes three drainage grooves, which are a first drainage groove, a second drainage groove, and a third drainage groove, and the first drainage groove, the second drainage groove, and the third drainage groove are uniformly distributed around the first tube body in a triangular distribution.

Optionally, the surgical support tube 100 includes four drainage grooves, which are a first drainage groove, a second drainage groove, a third drainage groove, and a fourth drainage groove, respectively, and the first drainage groove, the second drainage groove, the third drainage groove, and the fourth drainage groove are symmetrically around the first tube body with respect to neutrality.

The drainage section 110 of the surgical support tube 100 includes 306 drainage grooves, which are a first drainage groove, a second drainage groove, a third drainage groove, a fourth drainage groove, a fifth drainage groove, and a sixth drainage groove, respectively. From the upper end of drainage end to the lower extreme, first drainage groove the second drainage groove the third drainage groove the fourth drainage groove the fifth drainage groove with the opening length of sixth drainage groove increases gradually. Correspondingly, the first drainage groove corresponds to a first closed area, the second drainage groove corresponds to a second closed area, the third drainage groove corresponds to a third closed area, the fourth drainage groove corresponds to a fourth closed area, the fifth drainage groove corresponds to a fifth closed area, and the closed lengths of the first closed area, the second closed area, the third closed area, the fourth closed area and the fifth closed area are sequentially reduced. Wherein the sixth drainage groove is not provided with the closed area or the closed area is shortest.

That is, in the inverted direction in 13A. The drainage section 110 of the surgical support tube 100 includes 306 drainage grooves, which are a first drainage groove, a second drainage groove, a third drainage groove, a fourth drainage groove, a fifth drainage groove, and a sixth drainage groove, respectively. From the lower end to the upper end of the drainage section 110, the opening lengths of the first drainage groove, the second drainage groove, the third drainage groove, the fourth drainage groove, the fifth drainage groove and the sixth drainage groove are gradually increased. Correspondingly, the first drainage groove corresponds to a first closed area, the second drainage groove corresponds to a second closed area, the third drainage groove corresponds to a third closed area, the fourth drainage groove corresponds to a fourth closed area, the fifth drainage groove corresponds to a fifth closed area, and the closed lengths of the first closed area, the second closed area, the third closed area, the fourth closed area and the fifth closed area are sequentially reduced. Wherein the sixth drainage groove is not provided with the closed area or the closed area is shortest.

The length of the closed region is set to match the position of the drainage groove 111 of the closed region, and is not limited to the above.

Further, the outer end of the surgical support tube 100 is a fully-closed arc-shaped head end. The outer end of the surgical support tube 100 has the open circular arc-shaped head end, that is, each drainage groove 111 is directly connected to the outside at the top end.

It should be noted that the drainage segment 110 of the surgical support tube according to the present invention has a plurality of drainage grooves 111, and the drainage sheets forming the drainage grooves 111 extend radially outwards, that is, drainage positions are formed on the entire circumferential side and different bending positions of the drainage segment 110, and the drainage sheets have a certain supporting effect, and when a blood clot reaches the drainage segment, the blood clot is blocked by the guide vanes of the drainage grooves, so that even if the blood clot occurs, all drainage areas of all the drainage grooves are not blocked, that is, a phenomenon of complete blocking does not occur, whereas a common support tube is easily completely blocked by the blood clot due to only two small holes which can be accessed.

Referring to fig. 12-28 of the drawings, the present invention provides a surgical safety tube adapted to extend into a patient along a fistula of the patient. Bleeding at a lesion position in a patient can flow out along an observation channel of the safety tube for operation, so that an operator can observe the bleeding condition at the lesion position in the patient conveniently, and then the recovery condition of the patient is judged. After the surgical safety tube stretches into the fistula of the patient and contacts with body fluid in the fistula, the surgical safety tube can be switched from a contracted state to an expanded state and contacts with a bleeding position on the inner wall of the fistula, so that the effect of rapid hemostasis is achieved.

Referring to fig. 12-28 of the drawings, the surgical safety tube includes an inner body portion 610. The body portion has a head section 611, a middle section 612 and a tail section 613, the head section 611 and the tail section 613 being located at opposite ends of the middle section 612, respectively. The body portion 610 also has a viewing channel 614 that communicates with the head section 611, the middle section 612, and the tail section 613.

In use, the head segment 611 is first aligned with a fistula 6901 of a patient 6900 and extended into the patient 6900, such that the head segment 611 moves to a lesion location within the patient 6900.

Referring to fig. 14 of the drawings, the surgical safety tube has a contracted state and an expanded state. In the contracted state, the diameter of the inner body portion 610 of the surgical safety tube is smaller, and in the expanded state, the diameter of the inner body portion 610 is larger.

The surgical safety tube is in the contracted state before and during the insertion of the surgical safety tube into the fistula 6901, and the inner body portion 610 has a smaller size that facilitates insertion of the inner body portion 610 into the fistula 6901. After the surgical safety tube is extended into the fistula 6901 and blood in the fistula 6901 contacts, the inner body portion 610 can gradually transition from the contracted state to the expanded state.

During the transition of the in vivo portion 610 from the contracted state to the expanded state, the in vivo portion 610 is able to absorb blood in the fistula 6901, helping to reduce blood accumulation in the fistula 6901 and reducing the risk of infection. The inner body portion 610 in the expanded state is capable of contacting and occluding a bleeding site within the fistula 6901, allowing for rapid hemostasis.

It should be noted that, in the use process of the surgical safety tube provided by the present invention, once the lesion position of the patient is found to be not ideal, the internal body portion 610 can be pulled out of the fistula 6901 in time, and the fistula 6901 can be re-inserted into a medical apparatus for performing a corresponding operation, without performing the formation step of the fistula 6901 again, so that the secondary pain to the patient 6900 can be effectively reduced. In other words, the surgical safety tube provided by the present invention also has the function of holding the fistula 6901.

Referring to fig. 15 and 16 of the drawings, the body portion 610 includes an inner core 615 and an outer shell 616. The inner core 615 surrounds the viewing channel 614, the outer shell 616 is wrapped around the outer side of the inner core 615, the outer shell 616 expands upon contact with blood in the fistula 6901, and the in-vivo portion transitions from the contracted state to the expanded state.

Further, the housing 616 includes a hemostatic sponge. Preferably, the housing 616 is made of a hemostatic sponge.

In use, after the body portion 610 is extended into the fistula 6901, the shell 616 of the body portion 610 is in contact with the fluid in the fistula 6901, and the hemostatic sponge of the shell 616 is expanded by aspiration, thereby absorbing blood in the fistula 6901 and squeezing the bleeding point in the fistula 6901.

In a first variant embodiment of the invention, the housing 616 is made of a degradable material and the housing 616 has a plurality of apertures, blood in the fistula 6901 being able to enter the apertures in the housing 616, causing the housing 616 to expand and the in-vivo portion 610 to transition from the contracted state to the expanded state.

Preferably, the degradable material is a medical degradable material, such as, but not limited to, chitosan, collagen (collagen), gelatin, cellulose (BC), silk fibroin, polyglycolide, polylactide PLA, and the like. The particular type of degradable material should not be construed as limiting the invention.

In the first modified embodiment, the outer shell 616 absorbs the blood expansion in the fistula 6901 at the beginning of the extension of the inner body portion 610 into the fistula 6901, thereby achieving the purpose of absorbing the bleeding in the fistula 6901 and squeezing the bleeding site in the fistula 6901. In a later stage of the extension of the body portion 610 into the fistula 6901, the outer shell 610 of the body portion 610 gradually degrades as the fistula 6901 heals, and the outer diameter gradually becomes smaller, which can facilitate the extraction of the body portion 610 from the fistula 6901.

In a second variant embodiment of the invention, the core 615 is also made of a degradable material. In the second modified embodiment, the inner core 615 and the outer shell 616 are both made of degradable materials, which can automatically degrade and disappear without pulling the inner body portion 610 out during use.

In the second variation, the outer shell 616 is directly underlying the inner wall of the fistula 6901 during use, the outer shell 616 degrading at a rate greater than the inner core 615. Once a secondary operation is found to be necessary to extract the core 615 in time before the core 615 degrades, a secondary punching operation is not required.

Further, the inner core 615 also has a plurality of pores, blood in the fistula 6901 can enter the pores in the inner core 615, such that the inner core 615 expands and the inner core 615 has a lower porosity than the outer shell 616. The porosity of the inner core 615 is lower than the porosity of the outer shell 616, and the blood-sucking expansion degree of the inner core 615 is smaller than the blood-sucking expansion degree of the outer shell 616 in use, so that the inner core 615 can be prevented from completely blocking the observation channel 614 by blood-sucking expansion, and the smoothness of the observation channel 614 is maintained.

Referring to fig. 12 and 13 of the drawings, the head 611 of the body portion 610 has a natural state and a guided state. In the natural state, the head section 611 is curved, and in the guided state, the head section is substantially straightened.

Referring to fig. 17 to 22 of the drawings, specifically, before the inner body portion 610 is inserted into the fistula 6901, a guide wire 6902 is inserted into the fistula 6901, then a sheath 6903 is inserted into the fistula 6901 along the guide wire 6902, the viewing channel 614 is aligned with the guide wire 6902, and the inner body portion 610 is inserted into the sheath 6903, after the inner body portion 610 of the surgical safety tube is inserted into the sheath 6903 to a predetermined depth, the sheath 6903 is pulled out, and then the guide wire 6902 is pulled out, thereby completing the insertion process of the surgical safety tube.

During the extension of the body portion 610 along the guide wire 6902 into the sheath 6903, the head segment 611 of the body portion 610 is substantially straightened under the guidance of the guide wire 6902 to facilitate extension into the sheath 6903. After the guide wire 6902 is pulled out of the viewing channel 614 of the body portion 610, the head section 611 of the body portion 610 bends and gradually returns to the natural state.

It should be noted that when the head segment 611 of the body portion 610 is in the natural state, the bent head segment 611 has a larger volume, and can play a role in fixing the body portion 610, preventing the body portion 610 from sliding out of the fistula 6901, and improving the stability of the body portion 610 installed in the patient 6900.

Referring to fig. 12 and 13 of the drawings, in particular, the head 611 includes a head pipe 6111. A section of the head section tube 6111 distal from the tail section 613 has a distal opening 6112 in communication with the viewing channel 614.

After the body portion 610 is placed within the patient 6900, blood within the patient 6900 can enter the viewing channel 614 along the distal opening 6112 and be expelled. During placement of the body portion 610 within the patient 6900, the guidewire 6901 can be passed through the distal opening 6112 into the viewing channel 614 and guide and position the head segment 611 during extension of the body portion 610.

Further, the side wall of the head pipe 6111 also has a number of side openings 6113 in communication with the viewing channel 614. Through the side opening 6113, blood within the patient 6900 can also enter the viewing channel from the side opening 6113 of the side wall of the head segment tube 6111, allowing blood to enter the viewing channel 614 from multiple directions and positions, improving the blood discharging effect.

Preferably, a plurality of said side openings 6113 are provided around the side of said head tube 6111 to allow blood in said patient 690 to enter said viewing channel 614 from a plurality of directions around said head tube 6111.

Preferably, the length extension direction of the side opening 6113 coincides with the length extension direction of the head section 611. Optionally, the length extension direction of the side opening 6113 can also intersect the length extension direction of the head segment 611. It should be understood that the length extension direction and extension length of the side opening 6113 should not limit the present invention.

23-24, In a third variant embodiment of the safety tube, the lateral wall of the head section 611 has drainage grooves 6116, the intermediate section 612 has an intermediate channel 6120, and the tail section 613 has a tail channel 6130. The drainage grooves 6116 are respectively communicated with the middle channel 6120, the middle channel 6120 is also communicated with the tail channel 6130, and the drainage grooves 6116, the middle channel 6120 and the tail channel 6130 are communicated to form the observation channel 614.

In the third variant embodiment, blood in the patient 6900 can enter the intermediate channel 6120 along a plurality of the drainage grooves 6116 around the head section 611 and be discharged outwards through the tail channel 6130. In the process of discharging the blood in the patient 6900, when one drainage groove 6116 is blocked by foreign matters such as blood clots, the normal flow of other drainage grooves 6116 is not affected, and the normal use of the operation safety tube is not affected.

Further, the head section 611 includes a middle guiding pipe 6114 and a plurality of drainage plates 6115, one end section of each drainage plate 6115 is connected to the middle guiding pipe 6114, the other end extends in a direction away from the middle guiding pipe 6114, and the drainage grooves 6116 are formed between adjacent drainage plates 6115.

By providing a plurality of the drainage plates 6115 on the outer side of the intermediate guide pipe 6114, a plurality of the drainage grooves 6116 can be formed separately on the outer side of the intermediate guide pipe 6114, and adjacent drainage grooves 6116 are separated from each other. The number of the drainage plates 6115 can be implemented as three, four, five or more, and the specific number of the drainage plates 6115 should not be construed as limiting the present invention.

Further, the intermediate guide tube 6114 has a guide channel 61140, the guide channel 61140 communicating with the intermediate channel 6120 for the guide wire 6902 to pass through. During extension of the inner body portion 610 of the surgical safety tube into the fistula 6901 of the patient 6900, the guide wire 6902 is adapted to extend through the guide channel 61140 of the head segment 611 into the intermediate channel 6120 and the tail channel 6130 to guide installation of the inner body portion 610 into the fistula 6901.

Further, the head section 611 further includes a plurality of protection plates 6117, the protection plates 6117 are mounted at one end of the drainage plate 5 away from the middle guiding tube 6114, a gap 61170 is provided between adjacent protection plates 6117, and the gap 61170 is communicated with the drainage groove 6116.

The protection plates 6117 have a certain radian, and adjacent protection plates 6117 are arranged in a circular shape. The protection plate 6117 can prevent the end of the drainage plate 6115 away from the middle guide tube 6114 from directly contacting with the patient 6900, and prevent the end of the drainage plate 6115 away from the middle guide tube 6114 from scratching the patient 6900.

In the third variant embodiment, the blood of the fistula 6901 of the patient 6900 can enter the drainage groove 6116 through the gap 61170 and then enter the middle channel 6120 and the tail channel 6130 in sequence to be discharged. The width of the gap 61170 is smaller than the width of the drainage groove 6116, so that the outflow of blood entering the drainage groove 6116 can be effectively avoided.

Referring to fig. 24 of the specification, preferably, a middle portion of the protection plates 6117 is connected to the drainage plate 6115, and two ends of one protection plate 6117 form the gap 61170 with the adjacent protection plate 6117. Alternatively, in other preferred embodiments of the present invention, it is also possible that one end of the protection plate 6117 is connected to one end of the drainage plate 61170 remote from the middle guide tube 6114. It is understood that the specific location of the shield 6117 attached to the drainage plate 6115 should not be construed as limiting the invention.

Referring to fig. 12-14, 17-23, and 25-28 of the specification, the surgical safety tube further includes an extracorporeal portion 620. The outer body portion 620 is adapted to be secured to the outer body of the patient 6900 to secure the inner body portion 610 against the inner body portion 610 slipping out of the fistula 6910.

Specifically, the extracorporeal portion 620 includes a fixing piece 621, the fixing piece 621 is adapted to be connected to the tail section 613, and the fixing piece 621 is further adapted to be fixedly mounted on the outside of the patient 6900 to fix the tail section 613.

After the inner body portion 610 extends into the patient 6900, the anchor tab 621 is adapted to be fixedly secured to the patient 6900 outside of the body to secure the inner body portion 610 against the inner body portion 610 from exiting the fistula 6901 from the fistula 6901.

Referring to fig. 12 and 13 of the drawings, further, the fixing plate 621 includes a connecting portion 6211 and an attaching portion 6212, the attaching portion 6212 is adapted to be attached to the outside of the patient 6900, and the connecting portion 6211 is integrally connected to the tail section 613. The tail section 613 has a tail opening 6118 in communication with the viewing channel 614. The extracorporeal portion 620 further includes a blocking plug 622, the blocking plug 622 being adapted to be mounted to the viewing channel 614 through the tail opening 6118.

The blocking plug 622 is capable of controlling the opening and closing of the tail opening 6118. The blocking plug 622 is removed from the tail opening 6118 when it is necessary to observe the state of blood flowing out of the observation path 614, and the blocking plug 622 is attached to the tail opening 6118 to block the tail opening 6118 to prevent the blood flowing out of the observation path 614 when it is not necessary to observe the state of blood flowing out of the observation path 614.

Optionally, the anchor sheet 621 and the plug 622 can also be made of a transparent material, so that a physician and/or patient can view the blood condition in the viewing channel 614 without removing the plug 622.

Further, the outer body 620 further includes a connecting bar 623, wherein one end of the connecting bar 623 is connected to the fixing piece 621, and the other end is connected to the blocking plug 622. Preferably, the connecting strip 623 is made of a material that is flexible, such as, but not limited to, elastomeric rubber, wire, and metal strands. The provision of the connecting strip 623 prevents the plug 622 from being lost after being detached from the tail opening 6118, and is convenient to use.

The adhesive portion 6212 of the fixing plate 621 is provided with an adhesive layer 62121, and the adhesive layer 62121 is coated with glue and is suitable for being adhered to the outside of the patient 6900.

A fourth variant embodiment of the surgical safety tube according to the invention is illustrated with reference to fig. 25 of the accompanying drawings. The fixing piece 621 includes an attaching portion 6212 and a sealing portion 6213, the attaching portion 6212 being adapted to be attached to the outside of the patient 6900. The extracorporeal portion 620 further includes a stopper 622 disposed on the seal portion 6213. The tail section 613 has a tail opening 6118 in communication with the viewing channel 614. The plug 622 is adapted to be mounted to the viewing channel 614 through the tail opening 6118.

In the fourth modified embodiment, the blocking plug 622 is attached to the fixing piece 621, and the blocking plug 622 blocks the tail opening 6118 when the attaching portion 6212 of the fixing piece 621 is attached to the outside of the patient 6900.

In the fourth modified embodiment, the external portion 620 further includes a connection bar 623, and one end of the connection bar 623 is connected to the tail section 613 and the other end is connected to the fixing piece 621.

A fifth variant embodiment of the surgical safety tube provided by the invention is illustrated with reference to fig. 26 of the accompanying drawings. The fixing piece 621 includes an attaching portion 6212 and a sealing portion 6213, the attaching portion 6212 being adapted to be attached to the outside of the patient 6900. The sealing portion 6213 has a sealing cap 62131. The tail section 613 has a tail opening 6118 in communication with the viewing channel 614. The sealing cover 62131 is adapted to cover the outside of the tail opening 6118.

In the fifth modified embodiment, when the attaching portion 6212 of the fixing piece 621 is attached to the patient 6900 at a predetermined position outside the body, the sealing portion 62131 is adapted to illuminate the tail opening 6118 to block the tail opening 6118. Preferably, the sealing cover 62131 is made of a transparent material so as to observe the state of the blood flowing out of the observation path 614. Optionally, the sealing cover 62131 can be further implemented as a storage bag, and after the attaching portion 6212 is attached to the patient 6900 at a preset position outside the body, the tail opening 6118 is in communication with the storage bag, and the blood flowing out of the observation channel 614 can be collected in the storage bag. Preferably, the pouch is made of a transparent material to facilitate the patient's observation of the state of the blood in the pouch.

A sixth modified embodiment of the surgical safety tube provided by the present invention is described with reference to fig. 27 and 28 of the accompanying drawings. The fixing piece 621 includes an attaching portion 6212 and a avoiding portion 6214, the attaching portion 6212 is adapted to be attached to the outside of the patient 6900, and the avoiding portion 6214 has an avoiding opening 62140. The extracorporeal portion 620 further comprises a first sleeve 6241 and a second sleeve 6242, the first sleeve 6241 having a first sleeve passage, the second sleeve 6242 having a second sleeve passage, the first sleeve 6241 being connected to the relief portion 6214 and the first sleeve passage being in communication with the relief opening 62140, the tail section 613 being adapted to pass through the relief opening 62140 into the first sleeve passage. The extracorporeal portion 620 further includes a receiving bag 625, the receiving bag 625 being mounted to the second sleeve 6242 and communicating with the second sleeve passage. When the second sleeve 6242 is mounted to the first sleeve 6241, the tail 613 communicates with the receptacle 625, and blood in the viewing channel 614 can flow into the receptacle 625.

Preferably, the receiving bag 625 is made of a transparent material so as to observe the state of the blood collected in the receiving bag 625.

Preferably, the second sleeve 6242 is detachably mounted to the first sleeve 6241. Preferably, the second sleeve 6212 and the first sleeve 6241 are detachably connected by a threaded connection, an outer wall of the first sleeve 6241 is provided with external threads, and an inner wall of the second sleeve is provided with corresponding internal threads. Alternatively, in other preferred embodiments of the present invention, the first sleeve 6241 and the second sleeve 6242 may be detachably connected by other means, such as, but not limited to, a snap fit, an interference fit, or the like.

According to another aspect of the present invention, the present invention further provides a surgical safety tube kit comprising the surgical safety tube, the guide wire 6902 and the sheath 6903 described above. The guide wire 6902 is adapted to be inserted into a fistula 6901 of a patient 6900, the sheath 6903 is adapted to be inserted into the fistula 6901 along the guide wire 6902, the surgical safety tube is adapted to be passed along the guide wire 6902 into the sheath 6903 to pass into the fistula 6901, and the surgical safety tube remains in the fistula 6901 after the guide wire 6902 and the sheath 6903 exit the fistula 6901.

The surgical safety tube kit provided by the invention is used by inserting the guide wire 6902 into the fistula 6901 of the patient 6900, inserting the sheath 6903 into the fistula 6901 along the guide wire 6902, aligning the viewing channel 614 of the surgical safety tube with the guide wire 6902 so that the surgical safety tube is inserted into the sheath channel of the sheath 6903 along the guide wire 6902, extracting the sheath 6903 from the fistula 6901, and extracting the guide wire 6902 from the viewing channel 614 of the surgical safety tube.

It should be noted that, before the surgical safety tube is inserted into the fistula 6901, the sheath 6903 is inserted into the fistula 6901, and the sheath 6903 can isolate the surgical safety tube from the fistula 6901 during the process of inserting the surgical safety tube into the fistula 6901, so as to prevent the surgical safety tube from being converted into the expanded state after absorbing blood, thereby facilitating the insertion of the surgical safety tube.

Referring to fig. 29 to 32, an ostomy device according to a preferred embodiment of the invention is illustrated. The ostomy device comprises a drainage tube 810 and a ostomy bag 820, wherein the ostomy bag 820 is detachably connected to the drainage tube 810, and the ostomy bag 820 is used for containing liquid or liquid-solid mixture such as blood, pus and urine flowing out of the drainage tube 810 after the drainage tube 810 is placed in a patient. And the fistulization bag 820 is detachable, is convenient for take down and change, after taking down, does not influence the drainage tube 810 continues to be kept in the patient, still can establish the passageway at patient's body surface and sick position, can enough timely drainage as required, can be under the not good circumstances of operation again, the swift construction secondary operation passageway of being convenient for, the injury that produces the patient is less.

The drainage tube 810 is made of degradable materials, and can be automatically degraded in the in-vivo environment, and the in-vitro part can be automatically fallen off or sheared off without taking out, so that the device is safer and more convenient and is very beneficial to the rehabilitation of patients.

The drainage tube 810 includes a drainage tube body 811 and a fixing unit 812, wherein the fixing unit 812 includes a fixing body 8121 and a connecting body 8122, the fixing body 8121 has an adhesive surface 812101 and a fixing surface 812102 opposite to the adhesive surface 812101, the drainage tube body 811 is connected to the fixing body 8121 and is fixed to the body of the patient through the adhesive surface 812101 of the fixing body 8121, that is, when the drainage tube 811 is partially placed in the body of the patient, the adhesive surface 812101 is adhered to the body surface of the patient, thereby fixing the drainage tube 810.

The ostomy bag 820 comprises a holding unit 821 and a connecting unit 822, wherein the holding unit 821 is provided with a fluid inlet 8211 and a holding main body 8212 communicated with the fluid inlet 8211, the connecting main body 8122 is arranged on the fixing surface 812102, and the connecting unit 822 is arranged on the connecting main body 8122 of the fixing unit 812 of the drainage tube 810, so that the fluid inlet 8211 is communicated with the drainage tube 810, and further, the effusion led out of the drainage tube 810 enters the holding main body 8212 through the fluid inlet 8211 to be collected. The fixing body 8121 has a through-tube passage 81210, the through-tube passage 81210 is matched with the drainage tube body 811 to be suitable for the drainage tube body 811 to pass through, and the fixing unit 812 is detachably connected to the skin of the patient, so that the drainage tube body 811 is firmly positioned on the patient's body through the fixing unit 812 to drain urine, pus, blood, or the like in the renal pelvis of the patient to the holding unit 821 of the fistulization bag 820, thereby helping the patient recover quickly.

The drain body 811 has a guide channel 81101, and in use, a guidewire is inserted into the guide channel 81101 to thereby deliver the flexible drain body 811 to a predetermined location within a patient.

The drainage tube body 811 has at least one fluid channel 81102 and at least one fluid channel 81103, the fluid channel 81103 communicates with the fluid channel 81102, and the fluid in the patient can enter the fluid channel 81102 through the fluid channel 81103, and can be drained outside the body.

According to one embodiment of the present invention, the drainage tube body 811 comprises a drainage tube front section 8111, a drainage tube rear section 8112 and a stabilizing section 8113, wherein the drainage tube front section 8111 and the drainage tube rear section 8112 are connected, that is, the drainage tube rear section 8112 extends backwards to form the drainage tube front section 8111, and the drainage tube front section 8111 and the drainage tube rear section 8113 are integrally connected. The stabilizing section 8113 is externally connected to the connection part between the front drainage tube section 8111 and the rear drainage tube section 8112, and the three sections form the drainage tube body 811. Wherein the front section 8111 of the drainage tube can be in a vertical state and a bending state, in this embodiment, the front section 8111 of the drainage tube is in a natural bending state, that is, a structure similar to a pigtail, and the front section bending of the body 811 of the drainage tube can reduce the stimulation to the body of a patient. When it is desired to reach a predetermined position on the patient's body, the flexible, curved, anterior drainage tube segment 8111 is substantially straightened by a guidewire extending into the guide channel 81101 such that the anterior drainage tube segment 8111 reaches the predetermined position, and after the guidewire is withdrawn, the anterior drainage tube segment 8111 returns to the natural curved state at the predetermined position, thereby reducing irritation to the body.

Further, a plurality of the fluid slots 81103 are disposed at spaced apart intervals in the draft tube front section 8111, and the fluid channel 81102 is disposed to extend along the draft tube front section 8111 to the draft tube rear section 8112 and communicate with the fluid slots 81103 at the draft tube front section 8111. The guide channel 81101 extends from the end of the rear drain section 8112 to the top end of the front drain section 8111 for insertion of a guide wire such that the front drain section 8111 reaches a substantially straightened state for delivery into a patient.

The direction of insertion into the human body is defined as front, the direction of exposure to the outside of the human body is defined as rear, the direction near the front is defined as top, and the direction near the rear is defined as tail.

The fluid passage 81102 passes through the drainage tube front section 8111, the stabilizing section 8113 and the drainage tube rear section 8112 in sequence from front to back. That is, the stabilizing section 8113 is an outer expansion of the fluid channel 81102 at the stabilizing section 8113, and is a circumferential expansion that does not affect the passage of liquid or a liquid-solid mixture through the fluid channel 81102. The liquid-solid mixture refers to urine, pus, blood, etc. with blood clots, stones, etc.

The drainage tube body 811 comprises an outer tube 8115 and an inner tube 8116, wherein the outer tube 8115 is circumferentially connected to the outside of the inner tube 8116, and the inner tube 8116 and the outer tube 8115 are suitable for being manufactured in an integrated manner and also suitable for being manufactured in a layered manner. The front section of the outer tube 8115 and the front section of the inner tube 8116 are connected together to form the drainage tube front section 8111, and the rear section of the outer tube 8115 and the rear section of the inner tube 8116 are connected to form the drainage tube rear section 8112. The fluid channel 81102 is formed between the outer tube 8115 and the inner tube 8116, or the fluid channel 81102 is disposed between the outer tube 8115 and the inner tube 8116, the fluid groove 81103 is disposed at a front section of the outer tube 8115, and the inner tube 8116 is of a hollow structure, that is, the guide channel 81101 is formed inside the inner tube 8116. In the present invention, the guide channel 81101 may or may not be in communication with the fluid channel 81102.

According to another embodiment, the guide channel 81101 is closed at the top end of the front section 8111 of the drainage tube, and the guide channel 81101 is communicated with the outside by at least one through hole in the front section of the inner tube 8116, so that the guide channel 81101 is communicated with the outside, or the through hole is not opened, so that the guide channel 81101 has no drainage function and only has guide function, and thus, the communication form of the guide channel 81101 is various and is not limited by the example of the present invention.

Further, the drainage tube body 811 further has a fluid outlet 81104 and a guiding inlet 81105, the fluid outlet 81104 communicates with the fluid channel 81102, the guiding inlet 81105 communicates with the guiding channel 81101, wherein the fluid outlet 81104 and the guiding inlet 81105 are both provided at the distal end of the drainage tube rear section 812, and the fluid outlet 81104 and the guiding inlet 81105 communicate with the fluid inlet 8211 and the containing body 8212 of the ostomy bag 820, such that the fluid in the body is drained to the ostomy bag 820.

Each fluid passage 81102 extends from each drain outlet 81104 at the end of the drain back section 8112 to the top end of the drain front section 8111 and communicates with the internal patient environment through the fluid slot 81103 to drain fluid product to the outside of the body, the inflation passage 811302 extends from the inflation port 811303 at the end of the drain back section 811302 to the inflation lumen 811301 to inflate the inflation lumen 811301, the guide passage 81101 extends from the guide inlet 81105 at the end of the drain back section 8112 to the top end of the drain front section 8111 and communicates with the internal patient environment at the top end of the drain front section 8111 to extend a guide wire through the guide passage 81101 to the internal body environment, and may also be used to drain fluid product to the outside.

In the present invention, the fixing surface 812102 may be integrally formed with the outer tube 8115 of the drain body 811 in order to firmly fix the fixing body 8121 to the drain body 811. In addition, the drainage tube body 811 and the fixing body 8121 may be separately manufactured by a separate structure, for example, by providing a corresponding adhesive line on the circumferential side of the through-tube channel 81210, so that the fixing body 8121 is fixed by adhering the drainage tube body 811, or by providing a tubular adhesive layer on the outer portion of the drainage tube body 811 connected to the fixing body 8121, and adhering the fixing body 8121 to the outer tube of 8115 and the fixing surface 812102, so that the drainage tube body 811 may be fixed.

In this embodiment, the adhesive surface 812101 is a soft adhesive layer, the fixing surface 812102 is a hard holding layer, and a movable surface 812103 is disposed outside the adhesive surface 812101, that is, the adhesive surface 812101 is located between the fixing surface 812102 and the movable surface 812103, and the movable surface 812103 is detachably combined with the adhesive surface 812101, so that the adhesive surface 812101 can be repeatedly adhered to the skin of the patient in multiple separable ways by peeling the movable surface 812103 to expose the adhesive surface 812101.

The adhesion surface 812101 and the fixing surface 812102 each have a corresponding through hole, which together form the through-tube channel 81210. The adhesive surface 812101 and the fixing surface 812102 may be formed integrally or may be formed in layers and further fixed by hot pressing or adhesion. In this embodiment, the movable surface 812103 has two sheet structures, which are respectively located on two sides of the tube-through channel 81210, so that the movable surface 812103 is peeled off, and the movable surface will not touch the drain body 811, and the fixing of the drain body 811 at a predetermined position in the body will not be affected.

Alternatively, the fixing body 8121 is implemented as a regular image or an irregular pattern of a circle, rectangle, oval, triangle, trapezoid, square, diamond, ring, etc., and the fixing body 8121 is only used as an example and does not limit the content and scope of the degradable drainage tube 810.

As shown in fig. 29 to 36, the connection unit 822 is detachably mounted to the connection body 8122 such that the ostomy bag 820 is detachably connected to the drainage tube 810, and the drainage tube body 811 of the drainage tube 810 is communicated with the containing body 8212 of the ostomy bag 810.

Preferably, the connection body 8122 has an annular structure and surrounds the end of the rear section 8112 of the drainage tube body 811, but the shape is not limited, and may be a circular ring, a square ring, an elliptical ring, etc. The hardness of the connecting body 8122 is greater than that of the fixing surface 812102 of the fixing body 8121, so that on one hand, the weight of the liquid contained in the ostomy bag 820 can be borne, and on the other hand, the connecting body 8122 can disperse the acting force from the ostomy bag 820, reduce the pulling of the ostomy bag 820 and the liquid contained in the wound of a patient, and facilitate pain relief. For example, but not limited to, the connection body 8122 is fixed to the fixing body 8121 by hot pressing or bonding, that is, the connection body 8122 and the fixing body 8121 may be manufactured by integral molding, or may be manufactured separately by a separate structure, and further connection is performed.

In this embodiment, the connection body 8122 and the connection unit 822 are connected by screw. Specifically, an inner side of a base 8222 of the connection unit 822 is provided with an inner thread 8231, and an outer thread 81221 matched with the inner thread 8231 is provided on an outer side of the connection body 8122, so that the ostomy bag 820 is detachably connected with the drainage tube 810.

In addition, the connection body 8122 and the connection unit 822 may be connected in a socket or adhesive manner.

The connecting body 8122 further includes a connecting base 81222, the connecting base 81222 is disposed at the bottom of the connecting body 8122, wherein the connecting base 81222 is fixedly connected to the fixing surface 812101, and the connecting base 8122 and the fixing surface 812101 can be manufactured integrally, or can be manufactured in a layer manner, and further fixed by means of pasting, hot pressing or the like.

In addition, in a modification of the preferred embodiment, the connection body 8122 and the connection unit 822 may be detachably connected by a protrusion fastening, a pressing fastening, a rotation fastening, or an adhesive.

The connecting body 8122 has a communicating cavity 81220, the communicating cavity 81220 is communicated with the through-tube channel 81210, that is, after the drainage tube 810 passes through the through-tube channel 81210, the end of the drainage tube rear section 8112 is located in the communicating cavity 81220, that is, the end of the drainage tube rear section 8122 protrudes out of the fixing surface 812101. When the ostomy bag 820 is connected to the drainage tube 810, the communication chamber 81220 and the fluid inlet 8211 communicate such that fluid in the drainage tube body 811 enters the receiving body 8212.

When drainage is completed, the ostomy bag 820 is removed for patient movement convenience, at which point the end of the rear portion 8112 of the drainage tube may leak out. Thus, a modification is made to the above-described embodiment, and as shown in fig. 33, a sealing unit 830 is detachably attached to the drain body 811 to seal the guide passage 81201 and the fluid passage 81202.

The sealing unit 830 includes an extension body 831 and a sealing body 832, wherein the extension body 831 is a flexible material having a predetermined length and is connected between the fixing body 8121 and the sealing body 832 such that the sealing body 832 detachably seals the drain tube body 811. The sealing body 831 has a cap shape, and is matched with the end of the drain body 811, and can be sleeved on the drain body 811 protruding from the fixing surface 812101, so that the end of the drain body 811 is wrapped in the sealing body 832. When drainage is desired or a secondary surgical path is to be created, the sealing body 832 may be separated from the drain body 811 for a corresponding medical procedure.

The drain tube body 811 can also be sealed by a corresponding modification such that the sealing body 832 plugs into the distal end of the safety tube rear section 8112 like a plug.

Wherein the extension body 831 and the fixing body 8121 can be integrally manufactured, i.e., extend from the fixing body 8121 to the sealing body 832. In addition, the two can be connected through hot pressing or pasting, and can be firmly connected.

In another embodiment of the present invention, as shown in fig. 37-40, the ostomy device comprises a drainage tube 810 and a ostomy bag 820A, the drainage tube 810 and the ostomy bag 820A being detachably connected. On the basis of the above embodiments, the connection between the ostomy bag 820A and the drainage tube 810 is modified accordingly.

The ostomy bag 820A comprises a holding unit 821A and a connecting unit 822A, wherein the holding unit 821A comprises a holding body 8212A and a fluid inlet 8211A which are the same as the holding body 8212 and the fluid inlet 8211 of the holding unit 821 of the above embodiment, and the connecting unit 822A is disposed at the fluid inlet 8211A of the holding unit 821A. The connection unit 822A includes four engaging members 8221A and a connection member 8222A, wherein the engaging members 8221A are disposed at intervals on the connection member 8222A, and the connection member 8222A is disposed at the fluid inlet 8211A.

The drainage tube 810 includes a fixing unit 812A, where the fixing unit 812A includes a fixing body 8121A and a connecting body 8122A, and the connecting body 8122A is disposed on the fixing body 8121A, and the fixing body 8121A is the same as the fixing body 8121 in the above embodiment, is disposed on the drainage tube rear section 8112, and fixes the drainage tube 810 at a predetermined position of the patient body by means of adhesion.

In this embodiment, the connection body 8122A includes a connection base 81222A and a locking portion 81221A, the locking portion 81221A is disposed on the connection base 81222A, the connection base 81222A is disposed on the fixing body 8121A, wherein the locking portion 81221A is matched with the locking member 8221A, so that the locking member 8221A is detachably locked to the locking portion 81221A, so that the ostomy bag 820A is detachably connected to the drainage tube 810.

The connecting body 8122A further has a communication cavity 81220a, the communication cavity 81220a communicates with both the guide channel 81101 and the fluid channel 81102, and the engagement portion 81221a extends upward along the connecting base 81221a, such that the communication cavity 81220a is formed between the engagement portion 81221a and the connecting base 81221 a. When the ostomy bag 820A is connected to the drainage tube 810, the engaging member 8221A is engaged with the engaging portion 81221A, and the communication cavity 81220A is communicated with the fluid inlet 8211A, so that the fluid in the drainage tube main body 811 enters the accommodating main body 8212A.

The ostomy bag 820A is detachably connected with the drainage tube 810 in a clamping manner, so that connection and detachment are facilitated, when drainage is not needed, the ostomy bag 820A is taken down, and a sealing unit 830A included in the ostomy device is used for sealing, so that foreign matters are prevented from entering a body.

The sealing unit 830A includes an extension body 831A and a sealing body 832A, wherein the extension body 831A is a flexible material, has a predetermined length, and is connected between the fixing body 8121A and the sealing body 832A such that the sealing body 832A detachably seals the drain body 811. The sealing body 831A has a cap shape, and is matched with the end of the drain body 811, and can be sleeved on the drain body 811 protruding from the outside of the fixed body 8121A, so that the end of the drain body 811 is wrapped in the sealing body 832A. When drainage is desired or a secondary surgical path is to be created, the sealing body 832A may be separated from the drain body 811 for a corresponding medical procedure.

In the embodiment of the present invention, the stabilizing section 8113 has an inflation lumen 811301, an inflation channel 811302 and an inflation port 811303, the inflation lumen 811301 and the inflation channel 811302 are in communication, and the inflation port 811303 is located at the upper end of the inflation channel 811302 and is in communication with the inflation channel 811302, that is, the inflation lumen 811301 and the inflation port 811303 are located at two ends of the inflation channel 811302 and are in communication with the inflation channel 811302, respectively.

According to a preferred embodiment of the present invention, as shown in fig. 44, the stabilizing section 8113 further includes a stabilizing body 81131, the stabilizing body 81131 being disposed on the outer tube 8115, and the plenum 811301 being located between the stabilizing body 81131 and the outer tube 8115. That is, the peripheral edge of the stabilizing main body 81131 and the outer tube 8115 may be integrally formed, or may be manufactured in layers, and the stabilizing main body 81131 and the outer tube 8115 may be connected by adhesion or pressing, and the stabilizing section and the outer tube 8115 may be made of degradable materials. Wherein the inflation channel 811302 and the inflation port 811303 are both disposed in the outer tube 8115 and in communication with the inflation lumen 811301.

When the stabilizing body 81131 is in a natural state, i.e., an uninflated state, the stabilizing body 81131 is flush with the outer tube 8115, i.e., the uninflated stabilizing body 81131 and the outer tube 8115 together form the outer structure of the drain body 811. When the stable body 81131 is inflated through the inflation port 811303 and the inflation channel 811302, the interior of the inflation lumen 811301 is inflated with gas, so that the stable body 81131 is in an inflated state, and at this time, the stable body 81131 protrudes from the outer tube 815.

It should be noted that the fixing section 8113 is located at a lower portion of the connection portion between the fixing unit 812 and the drainage tube body 811, so that when the drainage tube body 811 is inserted into the patient, the fixing section 8113 is located in the patient, and the fixing section 8113 is inflated to be in an inflated state, so as to play a certain role in blocking, thereby preventing the drainage tube body 811 from easily sliding out of the body.

The above embodiment may also be modified, in which the stabilizing section 8113 is integrally formed with the outer tube 8115 or separately manufactured and connected, so that the inflation lumen 811301 is located inside the stabilizing body 81131, and the inflation channel 811302 and the inflation port 811303 are disposed on the outer tube 8115 to inflate the inflation lumen 811301.

Specifically, the stabilizing segment 8113 may be integrally formed with the outer tube 8115, i.e., the stabilizing body 81131 may be integrally formed around the outer tube 8115 such that the inflation lumen 811301 is located between the outer tube 8115 and the stabilizing body 81131, i.e., the stabilizing body 81131 remains with the outer tube 8115 as a portion of the outer tube 8115, with the inflation lumen 811301. The stabilizing body 811301 may also have a double-layer structure, the inflatable chamber 811301 is formed inside the double-layer structure, and the periphery of the stabilizing body 811301 of the double-layer structure is integrally formed with the outer tube 8115, for example, by hot pressing or pasting. In addition, the fixing section 8113 and the outer tube 8115 may have other connection manners, for example, the fixing section 8113 is a separate structure, and is adhered to the outside of the outer tube 8115, the inflation cavity 811301 is surrounded by the fixing body 81131 and extends upward to form the inflation channel 811302 to inflate the inflation cavity 811301, and the insertion of the drainage tube body 811 is not affected by the fixing section 8113 with a separate structure. Therefore, the connection between the stabilizing section 8113 and the outer tube 8115 is merely exemplary and is not limited to the above connection.

According to another embodiment of the present invention, as shown in fig. 45, the stable segment 8113B is connected to the inner tube 8116B through the outer tube 8115B, wherein the outer tube 8115B is layered with the inner tube 8116B and the stable segment 8113B, the inflation lumen 811301B is located inside the stable segment 8113B or between the stable segment 8113B and the inner tube 8116B, and the inflation channel 811302B and the inflation port 811303B are both disposed in the inner tube 8116B to inflate the inflation lumen 811301B. When the stabilizing section 8113B is not inflated, the stabilizing section 8113B is flush with the outer tube 8115B, and after inflation, the stabilizing section 8113B protrudes out of the outer tube 8115B.

It should be noted that, as shown in fig. 34 and 35, the outer tube 8115, the inner tube 8116 and the stabilizing body 81131 are manufactured in layers, wherein the outer tube 8115, the inner tube 8116 and the stabilizing body 81131 are manufactured using different materials. The outer tube 8115 is made of a material which is easier to degrade, the inner tube 8116 and the stabilizing body 81131 are made of a material which is slower or less easier to degrade, so that the outer tube 8115 and the reinforcing ribs 8117 are preferentially degraded in an in-vivo environment, and the inner tube 8116 and the stabilizing body 81131 are slower or not degraded, so that a secondary operation channel is conveniently constructed.

Specifically, after the outer tube 8115 is preferentially degraded, the inner tube 8116 and the stabilizing body 81131 remain, and still have drainage and guiding effects, and the stabilizing section 8113 in the expanded state can effectively prevent the inner tube 8116 from sliding out of the body. Therefore, a doctor can observe the condition in the patient through the guide channel 81101 of the inner tube 8116, if the condition is not good, a secondary operation channel is constructed through the guide channel 81101, so that secondary injury to the wound position is avoided, a new wound is avoided, pain to the patient is less, and recovery of the patient is facilitated.

In this case, if the inner tube 8116 and the stabilizing body 81131 are made of a material that degrades slowly, the inner tube 8116 and the stabilizing body 81131 need not be removed after the operation, but only degrade in the body. If the outer tube 8116 and the stabilizing body 81131 are made of non-degradable materials, the inner tube 8116 and the stabilizing body 81131 are removed after the inflation lumen 811301 is deflated as the case may be after drainage.

Alternatively, the stabilizing body 81131 may be made of the same degradable material as the outer tube 8115, and the inner tube 8116 may be made of a non-degradable material, such that the inner tube 816 may be removed.

In addition, the inner tube 8115 and the outer tube 8116 may be made of the same material, as shown in fig. 35 and 36, the inner tube 8115 and the outer tube 8116 are degraded simultaneously, or the outer tube 8115 is degraded first, the inner tube 8116 is degraded slowly, and finally, tube drawing is not required, thereby alleviating pain of patients.

In the present invention, the connection between the outer tube 8115 and the inner tube 8116 may be integrally formed, or may be manufactured in layers. Three ways are illustrated as in fig. 41-43.

As shown in fig. 41, according to an embodiment of the present invention, the outer tube 8115C and the inner tube 8116C are connected by a plurality of reinforcing ribs 8117C. Specifically, four fluid passages 81102C and four fluid outlets 81104C are formed at intervals among the outer tube 8115C, the reinforcing ribs 8117C and the inner tube 8116C, the guide passage 81101C is provided in the middle of the inner tube 8116C, and the inflation passage 811302C is provided in the reinforcing ribs 8117C or the outer tube 8115C, and may be in an unlimited position and may communicate with the inflation chamber 811301C. Wherein the inflation port 811303C, the fluid outlet 81104C, and the pilot inlet 81105C are all disposed at spaced apart locations at the end of the draft tube aft section 8112C.

In the present invention, the outer tube 8115C, the inner tube 8116C, and the reinforcing ribs 8117C are preferably manufactured by integral molding, or may be manufactured by layering. Wherein the fluid passage 81102C is located between the outer tube 8115C, the inner tube 8116C, and the reinforcing ribs 8117C.

As shown in fig. 814, the outer tube 8115D and the inner tube 8116D may be integrally formed therebetween according to one embodiment of the present invention. Specifically, the outer tube 8115D forms two fluid passages 81102D and two fluid outlets 81104D at intervals, the guide passage 81101D is disposed in the middle of the inner tube 8116D, and the inflation passage 811302D is disposed in the outer tube 8115D, and the position is not limited, and can communicate with the inflation chamber 811301D. Wherein the inflation inlet 811303D, the fluid outlet 81104D, and the pilot inlet 81105D are all disposed at the end of the draft tube aft section 8112D.

As shown in fig. 43, according to an embodiment of the present invention, the outer tube 8115E and the inner tube 8116E are integrally formed, that is, the outer tube 8115E and the inner tube 8116E together form a tube body 8118E, and a guide channel 81101E, a fluid channel 81102E, a fluid outlet 81104E and a guide inlet 81105E are disposed on the tube body 8118E at intervals, so that the guide channel 81101E and the guide inlet 81105E are connected, and the fluid channel 81102E and the fluid outlet 81104E are connected. And an inflation channel 811302E and an inflation port 811303E in communication with the inflation channel 811302E are disposed on the tubular body 8118E, wherein the inflation port 811303E, the fluid outlet 81104E and the guide inlet 81105E are all located at the distal end of the drainage end rear section 8112E.

According to one embodiment of the present invention, the outer tube 8115, the inner tube 8116, the reinforcing ribs 8117 and the stabilizing body 81131 are manufactured integrally, wherein the outer tube 8115, the inner tube 8116 and the stabilizing body 81131 are made of the same degradable material. In an in-vivo environment, the outer tube 8115 and the inner tube 8116 contact a similar in-vivo environment, and therefore, the outer tube 8115 and the inner tube 8116 degrade at about the same time or slightly slower than the inner tube 8116. In addition, when the guide channel 81101 does not have a drainage effect, the inner tube 8116 contacts less in-vivo environment, and the outer tube 8115 and the stabilizing body 81131 contact more in-vivo environment, so that the outer tube 8115 may degrade before the inner tube 8116, and after the outer tube 8116 degrades, the inner tube 8116 is degraded again slowly.

In the present invention, the degradable material used to manufacture the drainage tube 810 may be natural polymer material, such as gelatin, cellulose, heparin, chitin, silk, starch, chitosan, alginate, chitin, hyaluronic acid derivative, natural polyester, etc., or synthetic polymer material, such as polyorthoester, polyglycolic acid, polylactic acid-glycolic acid copolymer, aliphatic polyester, polycaprolactone, etc. The degradation products are nontoxic and have no side effect, can be absorbed and metabolized by a matrix or automatically decomposed and disappeared, and have no harm to human bodies.

It should be noted that, as shown in fig. 34 to 36, in the present invention, when the outer tube 815, the inner tube 816, the reinforcing ribs 817 and the fixing body 8131 are degraded, a certain expansion effect is provided, and in the expansion process, a certain compression effect is provided to the skin at the wound position of the human body, so that hemostasis is facilitated and degradation is facilitated.

In the process that the external drainage and holding tool is applied, when drainage is not needed, the fistulization bag 820 can be removed from the drainage tube 810, so that the drainage tube 810 is left in the patient, and the drainage, hemostasis or secondary operation channel construction of the drainage tube 810 is reserved until the patient is recovered.

After the part of the drainage tube 810 positioned in the patient body is degraded, the part positioned outside the patient body falls off by itself, or when the part of the internal body is degraded or is degraded almost completely, or the wound position of the patient is gradually healed along with the degradation of the drainage tube 810, the part outside the body can be cut off in advance, so that the part in the body is degraded continuously, and the healing and rehabilitation of the wound of the patient are not affected.

In some embodiments of the present invention, the externally-connectable fixing unit 812 is integrally formed with the catheter body 811, and is fixedly connected to the catheter body 811, i.e., the distance from the tip of the catheter front section 8111 of the catheter body 811 to the adhesive surface 812101 of the fixing body 8121 is fixed, and is not allowed to be adjusted, i.e., the length of the catheter body 811 extending into the patient is fixed, and is not allowed to be adjusted.

In other words, the fixing body 8121 is integrally formed to the outer tube of the drain body 811. When drainage by the drainage tube 810 is not needed, medical staff can observe the healing condition of the operation position through the fluid channel 81102 and the fluid outlet 81104, if the outer tube 8115 is degraded, the medical staff can also observe the condition of the operation position through the guide channel 81101 and the guide inlet 81105, if the healing condition is bad, a secondary operation channel can be constructed through the guide channel 81101 and the guide inlet 81105, and the secondary wound position is not needed to be constructed for operation, so that the pain of a patient is relieved.

Because the portion of the drainage tube 810 which is additionally reserved outside the patient is shorter, when the doctor observes the recovery condition of the operation site of the patient through the channel of the drainage tube 810, the drainage tube has less influence on the visual field of the doctor, which is beneficial for the doctor to clearly observe the recovery condition of the operation site of the patient. If the recovery is better, the material is automatically degraded, and tube drawing is not needed.

In these embodiments, the catheter body 811 may be firmly fixed to the patient by adhesion between the fixing body 8121 and the skin without providing the fixing section 8113.

In various embodiments of the present invention, when the ostomy bag 820 is connected to the drainage tube 810, the connection unit 822 of the ostomy bag 820 is connected to the connection body 8122 of the fixing unit 812 of the drainage tube 810, so that the fluid outlet 81104, the introduction inlet 81105 and the inflation inlet 811303 are all communicated with the accommodating body 8212 through the fluid inlet 8211, thereby draining the effusion to the ostomy bag 820.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims

A surgical support tube, characterized by comprising:

a support pipe having a guide channel, a guide inlet at a first end of the support pipe, and a guide outlet at a second end, the guide inlet and the guide outlet respectively communicating with the guide channel, the support pipe having a normal state and an expanded state, wherein the support pipe has a first outer diameter in the normal state and a second outer diameter in the expanded state, the first outer diameter being smaller than the second outer diameter, the support pipe absorbing liquid in the normal state and transforming into the expanded state, so that the support pipe can absorb liquid and transform from the normal state to the expanded state after being placed in a surgical channel of a human body; and

A fixing member is connected to the first end portion of the supporting pipe, and the fixing member has a fixing surface for being fixed to the surface of the human body.

The surgical support tube according to claim 1, wherein the support tube comprises a degradable material, so that the support tube can be placed in a surgical channel of a human body while the guide channel remains for a period of time.

The surgical support tube according to claim 2, wherein the wall thickness of the support tube decreases from the first end to the second end.

The surgical support tube according to claim 1, wherein the support tube comprises an inner tube and an outer tube, the outer tube and the inner tube are arranged in layers, the inner tube forms the guide channel, and both the inner tube and the outer tube are made of degradable materials.

The surgical support tube according to claim 4, wherein the support tube further comprises a barrier layer, wherein the barrier layer is disposed between the outer tube and the inner tube.

The surgical support tube according to claim 5, wherein a barrier cavity is formed between the outer tube and the inner tube, and the inner wall of the outer tube, the barrier cavity, and the outer wall of the inner tube form the barrier layer.

The surgical support tube according to claim 5, wherein the barrier layer comprises a barrier material, and the barrier material is filled between the outer tube and the inner tube.

The surgical support tube according to claim 1, wherein the support tube comprises an inner tube and an outer tube, the outer tube is located outside the inner tube, the inner tube forms the guide channel, the outer tube is made of a degradable material, and the inner tube is made of a non-degradable material.

The surgical support tube according to claim 1, wherein the support tube comprises an inner tube and an outer tube, the outer tube is located outside the inner tube, the inner tube forms the guide channel, and the outer tube has the normal state and the expanded state.

The surgical support tube according to claim 1, wherein the outer wall of the support tube comprises a hemostatic material.

The surgical support tube according to any one of claims 1 to 9, wherein the fixing member includes a fixing portion and a closing portion, the fixing portion being integrally connected to the support pipe, the fixing portion having a through hole, the through hole being communicated with the guide inlet of the guide channel, the closing portion being provided on the fixing portion in a manner capable of closing the through hole, the fixing portion having the fixing surface, the closing portion having a column, the column being installed in the through hole of the fixing portion with an interference fit, the fixing member further comprising a connecting portion, the connecting portion being movably connected between the fixing portion and the closing portion, wherein the closing portion is screwed onto the fixing portion.

The surgical support tube according to any one of claims 1 to 9, wherein the fixing member includes a fixing portion and a closing portion, the fixing portion having a through hole, the first end portion of the support pipe passing through the through hole of the fixing portion, the closing portion being provided on the fixing portion in a manner capable of closing the guide inlet, and the fixing portion having the fixing surface.

The surgical support tube according to any one of claims 1 to 9, wherein the fixing member includes a fixing portion and a connecting portion, the connecting portion being movably and integrally connected between the first end portion of the support pipe and the fixing portion, the fixing member having an open state and a closed state, in which the guide inlet of the support pipe is connected to the outside, and in the closed state, the fixing portion closes the guide inlet, and the fixing portion has the fixing surface so that the fixing surface is fixed to the surface of the human body in the closed state.

The surgical support tube according to claim 13, wherein the fixing portion has a groove, the groove being larger than the first end portion of the support tube, and the groove and the fixing surface being located on the same side, so that when the fixing surface is fixed to a human body surface, the opening of the groove is closed by the human body surface to form a closed cavity, and the first end portion of the support tube is enclosed within the closed cavity.

A surgical support tube, characterized by comprising:

a support pipe having a guide channel, a guide inlet at a first end of the support pipe, and a guide outlet at a second end, the guide inlet and the guide outlet respectively communicating with the guide channel, the support pipe comprising a degradable material to facilitate placement of the support pipe in a human surgical channel while retaining the guide channel for a period of time; and

A surgical safety tube, suitable for insertion into a patient's body, comprising:

an internal portion having a head section, a middle section, and a tail section, the head section and the tail section being located at opposite ends of the middle section, respectively, and the internal portion further comprising an observation channel connecting the head section, the middle section, and the tail section; the head section being adapted to penetrate into the patient's body along a fistula tract, and fluid in the patient's body being able to be discharged along the observation channel;

The internal part has a contracted state and an expanded state, and can be transformed from the contracted state to the expanded state after the internal part comes into contact with the liquid in the fistula.

The surgical safety tube according to claim 16, wherein the internal part comprises an inner core and an outer shell, the inner core surrounds and forms the observation channel, the outer shell is wrapped around the outside of the inner core, and the outer shell expands after contacting the liquid in the fistula tract, and the internal part is transformed from the contracted state to the expanded state.

The safety tube for surgery according to claim 17, wherein the outer shell comprises a hemostatic sponge.

The safety tube for surgery according to claim 17, wherein the outer shell is made of a degradable material and has a plurality of pores, and blood in the fistula tract can enter the pores in the outer shell, causing the outer shell to expand, and the internal part is converted from the contracted state to the expanded state.

The safety tube for surgery according to claim 19, wherein the inner core is made of a degradable material.

The safety tube for surgery according to claim 20, wherein the inner core has a plurality of pores, blood in the fistula tract can enter the pores in the inner core, causing the inner core to expand, and the porosity of the inner core is lower than the porosity of the outer shell.

The safety tube for surgery according to any one of claims 16 to 21, wherein the head section of the internal body portion has a natural state and a guided state, wherein the head section is bent in the natural state and is substantially straight in the guided state.

The surgical safety tube according to claim 22, wherein the head section comprises a head section pipe, the end of the head section pipe away from the tail section has a distal opening connected to the observation channel; the side wall of the head section pipe also has a plurality of side openings connected to the observation channel.

The safety tube for surgery according to claim 22, wherein the side wall of the head section has a plurality of drainage grooves;

The middle section has a middle channel;

The tail section has a tail channel;

Several of the gravitational grooves are respectively connected to the middle channel, and the middle channel is also connected to the tail channel. Several of the gravitational grooves, the middle channel and the tail channel are connected to form the observation channel.

The surgical safety tube according to claim 24, wherein the head section includes an intermediate guide tube and a plurality of drainage plates, one end of each of the drainage plates is connected to the intermediate guide tube, and the other end extends away from the intermediate guide tube, and the drainage groove is formed between adjacent drainage plates.

The safety tube for surgery according to claim 25, wherein the intermediate guide tube has a guide channel, the guide channel being connected to the intermediate channel for allowing the guide wire to pass through.

The surgical safety tube according to claim 25, wherein the head section further comprises a plurality of protective plates, wherein the protective plates are mounted on an end of the drainage plate away from the intermediate guide tube, and a gap is provided between adjacent protective plates, wherein the gap is connected to the drainage groove.

The internal portion has a contracted state and an expanded state, and the internal portion can be transformed from the contracted state to the expanded state after contacting the fluid in the fistula tract; and

An external part is connected to the tail section, and the external part is suitable for being fixed outside the patient's body.

The surgical safety tube according to claim 28, wherein the external portion includes a fixing plate, the fixing plate is suitable for being connected to the tail section, and the fixing plate is further suitable for being fixedly installed outside the patient's body to fix the tail section.

The surgical safety tube according to claim 29, wherein the fixing plate comprises a connecting portion and an adhesive portion, the adhesive portion being adapted to be attached to the patient's body, and the connecting portion being integrally connected to the tail section;

The tail section has a tail opening communicating with the observation channel;

The external portion further comprises a sealing plug adapted to be installed in the observation channel through the tail opening.

A fistula device, characterized in that it comprises:

A drainage tube, wherein the drainage tube includes a drainage tube body and a fixing unit, the drainage tube body including a drainage tube front section and a drainage tube rear section connected to the drainage tube front section, the drainage tube body having a guide channel, at least one fluid channel and at least one fluid groove connected to the fluid channel, wherein the fluid groove is provided in the drainage tube front section, the guide channel and each fluid channel extend from the drainage tube rear section to the drainage tube front section, and the fixing unit includes a fixing body and a connecting body, the fixing body being connected to the drainage tube rear section and the connecting body; and

An ostomy bag comprises a containing unit, a connecting unit and a fluid inlet, wherein the fluid inlet is arranged on the containing unit, and the connecting unit is arranged on the containing unit at the fluid inlet, and the connecting unit is detachably connected to the connecting body, so that the ostomy bag and the drainage tube are detachably connected, so that the fluid drained from the drainage tube enters the containing unit through the fluid inlet.

The fistula device according to claim 31, wherein the drainage tube body comprises an inner tube, an outer tube and at least one reinforcing rib, the outer tube surrounds the outside of the inner tube and is connected to the inner tube through the reinforcing rib, and each of the fluid channels is located between the outer tube, the inner tube and the reinforcing rib.

The fistula device according to claim 31, wherein the drainage tube body comprises an inner tube, an outer tube and at least one reinforcing rib, the outer tube surrounds the outside of the inner tube and is connected to the inner tube through the reinforcing rib, and each of the fluid channels is arranged at intervals on the outer tube.

The fistula device according to claim 32, wherein the outer tube, the inner tube and the reinforcing ribs are manufactured in layers and then connected by hot pressing.

The fistula device according to claim 33, wherein the outer tube, the inner tube and the reinforcing rib are manufactured as a single piece.

The fistula device according to claim 31, wherein the drainage tube body comprises an inner tube and an outer tube, the outer tube is connected to the outside of the inner tube, and the inner tube and the outer tube are integrally formed.

The fistula device according to any one of claims 32 to 36, wherein the drainage tube body further comprises a stabilizing section, the stabilizing section being arranged at the connection between the front section of the drainage tube and the rear section of the drainage tube, the stabilizing section having an inflation cavity and an inflation channel connected to the inflation cavity.

The fistula device according to claim 37, wherein the stabilizing section comprises a stabilizing body, the peripheral edge of the stabilizing body is connected to the outer tube, the inflation cavity is located between the outer tube and the stabilizing body, and the inflation channel is provided in the outer tube.

The fistula device according to claim 37, wherein the stabilizing section comprises a stabilizing body, the bottom of the stabilizing body is connected to the outer tube, the inflation cavity is located inside the stabilizing body, and the inflation channel is provided in the outer tube.

The fistula device according to claim 37, wherein the stabilizing section comprises a stabilizing body, the stabilizing body is connected to the inner tube, the inflation cavity is located between the inner tube and the stabilizing body, and the inflation channel is provided in the inner tube.

The fistula device according to claim 38, wherein the outer tube, the inner tube and the stable body are all made of degradable materials.

The fistula device according to claim 39, wherein the outer tube, the inner tube and the stable body are all made of degradable materials.

The fistula device according to claim 40, wherein the outer tube and the stabilizing body are both made of a degradable material, and the inner tube is made of a non-degradable material.

A fistula device, characterized in that it comprises:

An ostomy bag comprises a containing unit, a connecting unit, and a fluid inlet. The fluid inlet is provided in the containing unit, and the connecting unit is provided in the containing unit at the fluid inlet. The connecting unit is detachably connected to the connecting body, so that the ostomy bag and the drainage tube are detachably connected, so that the fluid drained from the drainage tube enters the containing unit through the fluid inlet. The drainage tube body is made of a degradable material.

The fistula device according to claim 44, wherein the drainage tube body further has at least one fluid outlet and one guide inlet, wherein each fluid outlet is connected to each fluid channel, and the guide inlet is connected to the guide channel, and each fluid outlet and the guide inlet are arranged at intervals at the terminal end of the rear section of the drainage tube.