CN222815911U - A heart valve stent delivery device - Google Patents

Abstract

The utility model provides a heart valve stent delivery device which comprises a shell, a conveying part, a first sliding part, a connecting part, a linkage piece and a linkage piece, wherein the shell is provided with a first accommodating cavity, the conveying part is connected with the shell, a valve stent is wrapped on the conveying part, the first sliding part is slidably arranged in the first accommodating cavity and divides the first accommodating cavity into a first cavity and a second cavity, the first cavity and the second cavity are mutually isolated and sealed, the connecting part is arranged in the shell, the connecting part is provided with a connecting channel, the second sliding part is slidably arranged outside the valve stent, the linkage piece is arranged in the connecting channel, and is connected with the first sliding part and the second sliding part, and the linkage piece is driven by the sliding of the first sliding part to drive the second sliding part to enter the connecting channel and be separated from the valve stent. The utility model improves the release efficiency of the heart valve stent.

Description

Heart valve stent delivery device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a heart valve stent delivery device.

Background

With the development of medicine and science technology, different advanced devices are applied in daily medical activities. Heart valve disease refers to heart damage caused by anatomy or dysfunction of a heart valve, wherein the heart damage caused by rheumatic heat is common, the heart valve refers to a valve between an atrium and a ventricle and between the ventricle and the artery, the heart valve mainly comprises a mitral valve, a tricuspid valve, an aortic valve and a pulmonary valve, the valve is used for preventing blood from flowing backwards, if the valve is in a problem, such as insufficient closing of the valve and stenoses of the valve, the heart expansion, heart failure, coronary heart disease and the like of a patient are generally caused, the patient is generally provided with symptoms such as palpitation, fatigue, short breath, obviously reduced activity tolerance, dyspnea due to labor and the like, the patient with heart valve disease is generally better to make a bracket, the incision of the operation mode is smaller, the injury to a human body is smaller, and the operation success rate can be improved by using the method of the intervention bracket.

In the delivery device of the existing stent, the delivery and release of the stent are complex and inconvenient, and the practicability is low.

Disclosure of utility model

Therefore, the embodiment of the utility model provides a heart valve stent delivery device, which improves the release efficiency of the heart valve stent.

The heart valve stent delivery device comprises a shell, a conveying part, a first sliding part, a connecting part, a second sliding part and a linkage piece, wherein the shell is provided with a first accommodating cavity, the conveying part is connected with the shell, a valve stent is wrapped on the conveying part, the first sliding part is slidably arranged in the first accommodating cavity and divides the first accommodating cavity into a first cavity and a second cavity, the first cavity and the second cavity are isolated and sealed, the connecting part is arranged on the shell, the connecting part is provided with a connecting channel, the second sliding part is slidably arranged outside the valve stent, the linkage piece is arranged in the connecting channel, the linkage piece is connected with the first sliding part and the second sliding part, and the linkage piece is driven by the sliding of the first sliding part to drive the second sliding part to enter the connecting channel and separate from the valve stent.

Compared with the prior art, the valve support is wrapped on the conveying part, the first sliding part is arranged in the first accommodating cavity, the connecting part and the second sliding part which are correspondingly connected are arranged, so that the second sliding part is driven to move by means of the sliding of the first sliding part, the valve support which is originally shielded below the second sliding part is exposed, the valve support is released at a required place, the heart valve support can not be released in advance in the feeding process through the arrangement, accidents are caused, the protection and sliding connection structure is simpler, the operation is more convenient, the probability of occurrence of problems is low, the conveying and releasing efficiency of the heart valve support is improved, the stability and the safety of the whole conveying device are improved, and the service and the operation can be better carried out for patients.

In one embodiment of the utility model, the release part is arranged at one end of the first cavity close to the connecting part, the extraction part is arranged at one end of the second cavity far away from the connecting part, and the second cavity is filled with physiological saline.

Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the release part is arranged in the first cavity, the extraction part is arranged in the second cavity, and physiological saline is filled in the second cavity at the same time, so that when the second sliding part and the heart valve support are required to be separated, the physiological saline in the second cavity is only required to be extracted and then released into the first cavity, and then the first sliding part can be pushed by means of pressure, so that the sliding of the first sliding part in the first accommodating cavity can be realized, the sliding of the second sliding part can be driven, the separation is realized, and through the arrangement, the release of the valve support is simpler and more convenient, and the release efficiency is higher.

In one example of the utility model, the linkage is detachably connected to the first slide.

Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the linkage piece and the first sliding part are arranged in a detachable mode, so that the linkage piece and the first sliding part can be independently replaced, convenience can be provided for subsequent maintenance, and the linkage piece and the first sliding part can be independently detached for disinfection, so that the disinfection is more thorough, the sanitation degree of the device is higher, and the use safety is guaranteed.

In one embodiment of the utility model, a matching part is arranged on one side of the first sliding part, which is close to the linkage part, and the linkage part and the matching part are spliced to enable the first sliding part and the linkage part to be fixedly connected.

Compared with the prior art, the technical effect that adopts this technical scheme to reach is equipped with the cooperation portion through setting up one side that first sliding part is close to the linkage, sets up linkage and cooperation portion simultaneously and peg graft, through the mode of pegging graft for the connection between linkage and the cooperation portion is simpler, makes the joint strength between the two also obtain the guarantee of a certain extent through simple structure simultaneously, and then makes the efficiency also higher when using, thereby has ensured the practicality of whole device.

In one example of the present utility model, the second sliding portion is detachably connected to the connecting portion.

Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the connecting part and the second sliding part are arranged to be detachable, so that the connecting part and the second sliding part can be independently replaced, convenience can be provided for subsequent maintenance and service, and the connecting part and the second sliding part can be independently detached for disinfection, so that the disinfection is more thorough, the sanitation degree of the device is higher, and the use safety is guaranteed. Meanwhile, the device can be replaced according to different use environments, so that the application scenes are more, and the practicability and compatibility of the device are improved.

In one example of the utility model, the inner wall of the connecting channel and the outer surface of the linkage member are in close proximity.

Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the inner wall of the connecting channel is tightly attached to the outer surface of the linkage member, so that when the linkage member slides in the connecting channel, the physiological saline in the first cavity cannot leak outside, the linkage member can be protected inside and cannot be corroded by outside, the service life of the linkage member is further prolonged, and the overall practicability and durability of the device are guaranteed.

In one embodiment of the utility model, a first groove is formed in one end, far away from the connecting part, of the conveying part, a second groove is formed in one end, close to the first groove, of the second sliding part, and the first groove and the second groove are correspondingly arranged to form a second accommodating cavity, and the sealing piece is arranged in the second accommodating cavity.

Compared with the prior art, the valve support has the technical effects that the first groove and the second groove are correspondingly arranged, and the sealing piece is arranged in the formed second accommodating cavity, so that the conveying part can not allow external liquid to enter the device when the valve support is conveyed, the use of internal parts is affected, the valve support can not be affected by the outside, and the valve support can be released in advance when the valve support does not reach a designated place, and the safety of a patient and normal operation are ensured.

In one example of the present utility model, the guide portion is provided at an end of the conveying portion remote from the connecting portion.

Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the guide part is arranged at one end of the conveying part, and then the conveying part can move more smoothly after entering the patient through the guide part, so that the damage to the body of the patient can be reduced, the conveying part can better and faster reach a designated place to release the valve bracket, the safety of the patient and the normal operation of the operation can be better ensured, and the conveying efficiency and the overall practicability of the delivery device are improved.

In one example of the present utility model, the guide portion includes two guide end surfaces that are inclined toward each other.

Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the two guide end faces are inclined towards the direction close to each other, so that the two guide end faces can form corresponding guide angles, the front end of the guide part can smoothly enter the human body, the conveying part can smoothly convey the valve stent to a designated place for release, and the normal operation and conveying efficiency of an operation are ensured.

After the technical scheme of the utility model is adopted, the following technical effects can be achieved:

(1) The valve support is wrapped on the conveying part, the first sliding part is arranged in the first accommodating cavity, and the connecting part and the second sliding part which are correspondingly connected are arranged, so that the second sliding part is driven to move by the sliding of the first sliding part, the valve support which is originally shielded below the second sliding part is exposed, the valve support is released at a required place, the valve support cannot be released in advance in the feeding process, accidents are caused, the protection and sliding connection structure is simpler, the operation is more convenient, the probability of occurrence of problems is low, the conveying and releasing efficiency of the valve support is improved, the stability and the safety of the whole conveying device are improved, and the service and the operation can be better carried out for patients;

(2) Through setting up release portion in first chamber, extraction portion is in the second chamber, simultaneously pack normal saline in the second chamber, and then when need break away from between second sliding part and the heart valve support, only need with the normal saline extraction in the second chamber and then release to first chamber in, and then can promote first sliding part with the help of pressure, can realize the slip of first sliding part in first holding chamber, and then can drive the slip of second sliding part, realize breaking away from, through this setting for valve support's release is simpler and more convenient, release efficiency is higher;

(3) Through setting up first recess and second recess and corresponding the setting, set up the sealing member simultaneously in the second chamber that holds that forms to make the transport portion can not let outside liquid enter into the device inside when carrying the valve support, thereby influence the use of inside parts, can also guarantee that the valve support can not be influenced by the outside, and release in advance when not reaching appointed place, ensured patient's safety and operation normal clear.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a heart valve stent delivery device according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a heart valve stent delivery device according to a second embodiment of the present utility model.

Fig. 3 is a sectional view in the direction B-B of fig. 2.

Fig. 4 is an enlarged view of area a in fig. 3.

Fig. 5 is an enlarged view of region C in fig. 3.

Reference numerals illustrate:

100. The heart valve stent delivery device comprises 110, a shell, 111, a first accommodating cavity, 112, a first cavity, 113, a second cavity, 120, a conveying part, 130, a first sliding part, 131, a matching part, 140, a connecting part, 150, a second sliding part, 160, a linkage part, 170, a first groove, 180, a second groove, 190, a sealing part, 200, a guiding part, 210 and a guiding end face.

Detailed Description

In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with present utility model are described in detail with embodiments of the present utility model including only some but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

[ First embodiment ]

Referring to fig. 1-5, the present utility model provides a heart valve stent delivery device 100, wherein the heart valve stent delivery device 100 comprises a housing 110, a conveying part 120, a first sliding part 130, a connecting part 140, a linkage 160 and a second sliding part 150, wherein the housing 110 is provided with a first accommodating cavity 111, the conveying part 120 is connected with the housing 110, the conveying part 120 is wrapped with a valve stent, the first sliding part 130 is slidably arranged in the first accommodating cavity 111, the first sliding part 130 divides the first accommodating cavity 111 into a first cavity 112 and a second cavity 113, the first cavity 112 and the second cavity 113 are isolated and sealed, the connecting part 140 is arranged in the housing 110, the connecting part 140 is provided with a connecting channel, the second sliding part 150 is slidably arranged outside the valve stent, the linkage 160 is arranged in the connecting channel, and the linkage 160 is connected with the first sliding part 130 and the second sliding part 150, wherein the linkage 160 is driven by the sliding of the first sliding part 130, and the second sliding part 150 is driven to enter the connecting channel and be separated from the valve stent.

Specifically, when the installation and use are specifically performed, firstly, the second cavity 113 is filled with physiological saline, wherein the release part and the extraction part are both arranged in the housing 110, and meanwhile, the extraction power can be a small pump, and the power supply equipment is also arranged in the housing 110 or connected with an external power supply. Simultaneously, the first sliding part 130 is slidably arranged in the first accommodating cavity 111, and meanwhile, the inner walls of the first sliding part 130 and the first accommodating cavity 111 are tightly attached, so that the first cavity 112 and the second cavity 113 are independent cavities, and physiological saline can not circulate mutually when being injected.

Further, the first sliding portion 130 is connected with the linkage 160, the linkage 160 is connected with the second sliding portion 150 through a connection channel in the connection portion 140, the second sliding portion 150 may be specifically a sleeve, and is sleeved outside the conveying portion 120, meanwhile, a mounting portion exists between the conveying portion 120 and the guiding portion 200, the mounting portion is used for mounting a valve support, and a mounting and fixing manner of the valve support may be inserting or clamping.

Further, after the valve support is fixed, normal saline is injected into the second cavity 113, so as to push the first sliding part 130, and then drive the linkage 160 to push the second sliding part 150 to move towards the guiding part 200, so that the second sliding part 150 completely shields the valve support, and meanwhile, the mounting part is sealed, and after the sealing, filling liquid is injected into the formed sealing space, so that the stability of the valve support is ensured.

Further, after the delivery portion 120 is delivered to the designated position through the operation, the physiological saline in the second cavity 113 is extracted and released into the first cavity 112, so that the first sliding portion 130 moves towards the side far away from the guiding portion 200 by means of pressure and thrust, and the second sliding portion 150 is driven to move and disengage, so that the valve stent is exposed at the designated position, and then the valve stent is released by means of the characteristics of the valve stent, and the heart valve stent delivery device 100 is extracted.

Preferably, the valve stent is wrapped on the conveying part 120, and the first sliding part 130 is arranged in the first accommodating cavity 111, and the connecting part 140 and the second sliding part 150 which are correspondingly connected are arranged, so that the second sliding part 150 is driven to move by means of the sliding of the first sliding part 130, the valve stent which is originally shielded below the second sliding part 150 is exposed, the valve stent is released at a required place, the valve stent can not be released in advance in the feeding process by the arrangement, accidents are caused, the protection and sliding connection structure is simpler, the operation is more convenient, the probability of occurrence of problems is low, the conveying and releasing efficiency of the valve stent is improved, the stability and the safety of the whole conveying device are improved, and the service and the operation can be better carried out for patients.

Specifically, the releasing portion is disposed at one end of the first cavity 112 near the connecting portion 140, and the extracting portion is disposed at one end of the second cavity 113 far away from the connecting portion 140, wherein the second cavity 113 is filled with physiological saline.

Preferably, through setting up release portion at first chamber 112, extraction portion is at second chamber 113, simultaneously pack normal saline in second chamber 113, and then when breaking away from between needs with second sliding part 150 and heart valve support, only need with the normal saline extraction in second chamber 113 and then release to first chamber 112 in, and then can promote first sliding part 130 with the help of pressure, can realize the slip of first sliding part 130 in first accommodation chamber 111, and then can drive the slip of second sliding part 150, realize breaking away from, through this setting for valve support's release is simpler and more convenient, release efficiency is higher.

Specifically, the linkage 160 is detachably connected to the first sliding portion 130.

Preferably, the linkage piece 160 and the first sliding part 130 are arranged in a detachable mode, so that the linkage piece 160 and the first sliding part 130 can be independently replaced, convenience can be provided for subsequent maintenance, and the linkage piece can be independently detached for disinfection, so that the disinfection is more thorough, the sanitary degree of the device is higher, and the use safety is guaranteed.

Specifically, a mating portion 131 is disposed on a side of the first sliding portion 130 near the linkage 160, and the linkage 160 and the mating portion 131 are inserted into each other, so that the first sliding portion 130 and the linkage 160 are fixedly connected.

Preferably, one side, close to the linkage 160, of the first sliding part 130 is provided with the matching part 131, meanwhile, the linkage 160 and the matching part 131 are arranged for plugging, the connection between the linkage 160 and the matching part 131 is simpler in a plugging mode, meanwhile, the connection strength between the linkage 160 and the matching part 131 can be guaranteed to a certain extent through a simple structure, and further, the efficiency in use is higher, and therefore the practicability of the whole device is guaranteed.

Specifically, the second sliding portion 150 is detachably connected to the connecting portion 140.

Preferably, the connecting part 140 and the second sliding part 150 are arranged in a detachable manner, so that the connecting part 140 and the second sliding part 150 can be independently replaced, convenience can be provided for subsequent maintenance, and the device can be independently detached for disinfection, so that the disinfection is more thorough, the sanitary degree of the device is higher, and the use safety is guaranteed. Meanwhile, the device can be replaced according to different use environments, so that the application scenes are more, and the practicability and compatibility of the device are improved.

Specifically, the inner wall of the connecting channel and the outer surface of the linkage 160 are closely adhered.

Preferably, through setting up the inner wall of connecting channel and the inseparable laminating of linkage 160 surface to make linkage 160 when the slip in connecting channel, can not spill outside with the normal saline in the first chamber 112, can also ensure simultaneously that linkage 160 is protected inside, can not be eroded by the outside, and then make linkage 160's life longer, ensured holistic practicality and the durability of device.

Specifically, a first groove 170 is disposed at an end of the conveying portion 120 away from the connecting portion 140, a second groove 180 is disposed at an end of the second sliding portion 150 adjacent to the first groove 170, the first groove 170 and the second groove 180 are disposed correspondingly to form a second accommodating cavity, and a sealing element 190 is disposed in the second accommodating cavity.

Preferably, the first groove 170 and the second groove 180 are correspondingly arranged, and the sealing piece 190 is arranged in the formed second accommodating cavity, so that the conveying part 120 can not allow external liquid to enter the device when the valve stent is conveyed, the use of internal parts is affected, the valve stent can be prevented from being affected by the outside, and the valve stent is released in advance when the designated place is not reached, and the safety of a patient and normal operation are ensured.

Specifically, the guiding portion 200 is disposed at an end of the conveying portion 120 away from the connecting portion 140.

Preferably, through setting up the one end of guiding part 200 at conveying part 120, and then can make the conveying part 120 more smooth and easy in the removal after entering into the patient's body through guiding part 200 to can reduce the harm to patient's health, can also ensure that conveying part 120 can better faster reach the appointed place and release the valve support, thereby can be better guarantee patient's safety and the normal clear of operation, improved conveying efficiency and the holistic practicality of delivery device.

Specifically, the guide portion 200 includes two guide end surfaces 210, and the two guide end surfaces 210 are disposed obliquely toward each other.

Preferably, the two guiding end faces 210 are inclined towards the direction close to each other, so that the two guiding end faces 210 can form a corresponding guiding angle, the front end of the guiding portion 200 can smoothly enter the human body, the conveying portion 120 can smoothly convey the valve stent to a designated place for release, and normal operation and conveying efficiency are guaranteed.

It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present utility model.

Claims (9)

1. A heart valve stent delivery device, the heart valve stent delivery device comprising:

A housing (110), the housing (110) being provided with a first accommodation chamber (111);

A delivery part (120), wherein the delivery part (120) is connected with the shell (110), and a valve bracket is wrapped on the delivery part (120);

The first sliding part (130), the first sliding part (130) is slidably arranged in the first accommodating cavity (111), the first sliding part (130) divides the first accommodating cavity (111) into a first cavity (112) and a second cavity (113), and the first cavity (112) and the second cavity (113) are isolated and sealed;

A connection part (140), wherein the connection part (140) is arranged on the shell (110), and the connection part (140) is provided with a connection channel;

A second sliding portion (150), the second sliding portion (150) being slidably disposed outside the valve holder;

A linkage member (160), wherein the linkage member (160) is arranged in the connecting channel, and the linkage member (160) is connected with the first sliding part (130) and the second sliding part (150);

The first sliding part (130) slides to drive the linkage piece (160), so that the second sliding part (150) is driven to enter the connecting channel and separate from the valve support.

2. The heart valve stent delivery device of claim 1, wherein the device comprises a plurality of stent-grafts,

A release portion provided at one end of the first chamber (112) near the connection portion (140);

an extraction part which is arranged at one end of the second cavity (113) far away from the connecting part (140);

wherein the second cavity (113) is filled with physiological saline.

3. The heart valve stent delivery device of claim 1, wherein the device comprises a plurality of stent-grafts,

The linkage (160) is detachably connected to the first sliding part (130).

4. The heart valve stent delivery device of claim 3, further comprising:

one side of the first sliding part (130) close to the linkage piece (160) is provided with a matching part (131);

The linkage piece (160) and the matching part (131) are inserted, so that the first sliding part (130) and the linkage piece (160) are fixedly connected.

5. The heart valve stent delivery device of claim 1, wherein the device comprises a plurality of stent-grafts,

The second sliding part (150) and the connecting part (140) are detachably connected.

6. The heart valve stent delivery device of claim 1, wherein the device comprises a plurality of stent-grafts,

The inner wall of the connecting channel is tightly attached to the outer surface of the linkage piece (160).

7. The heart valve stent delivery device of claim 1, wherein the device comprises a plurality of stent-grafts,

A first groove (170) is formed in one end, far away from the connecting part (140), of the conveying part (120);

A second groove (180) is formed in one end, close to the first groove (170), of the second sliding part (150), and the first groove (170) and the second groove (180) are correspondingly arranged to form a second accommodating cavity;

and a sealing element (190), wherein the sealing element (190) is arranged in the second accommodating cavity.

8. The heart valve stent delivery device of claim 1, further comprising:

And the guide part (200) is arranged at one end of the conveying part (120) far away from the connecting part (140).

9. The heart valve stent delivery device of claim 8, wherein the guide (200) comprises:

and two guide end surfaces (210), wherein the two guide end surfaces (210) are obliquely arranged towards the direction approaching each other.