CN119818009A - Insertion part and endoscope - Google Patents

Abstract

The present invention discloses an insertion part and an endoscope, and relates to the field of medical devices. The insertion part comprises an insertion body, a delivery tube, an instrument tube and a second airbag. The insertion body comprises a front end seat and a camera module arranged in the front end seat. The front end seat is provided with an instrument channel and a telescopic channel. The outer surface of the insertion body is arranged on the first airbag. The delivery tube is connected to the first airbag. The instrument tube extends into the instrument channel. The second airbag is located in the telescopic channel. The second airbag comprises an expansion section and a telescopic section. The telescopic section can extend out of the front end seat. One end of the telescopic section is connected to the front end seat, and the other end is connected to the expansion section. This setting can form a relatively closed detection space between the expansion section and the first airbag, and the lesion is in the detection space. At this time, a developing medium is injected through the instrument tube. The detection space performs fluorescent marking on the lesion to avoid a large amount of loss of fluorescent liquid, and the amount of fluorescent liquid can be reduced. At the same time, the loss of fluorescent liquid is reduced, and a clearer image can also be obtained.

Description

Insertion part and endoscope

Technical Field

The invention relates to the technical field of medical instruments, in particular to an insertion part and an endoscope.

Background

An endoscope is a commonly used medical instrument, is an inspection instrument capable of directly entering a natural pipeline of a human body, and can provide sufficient diagnostic information for doctors to treat diseases. The existing endoscope camera module has a white light mode, fluorescent images are overlapped and fused on the white light images, and a doctor can observe focus marked by fluorescence in the white light mode, so that important blood vessels and normal tissues are prevented from being excised, the operation efficiency is improved, and the operation risk is reduced.

However, in actual operation, it is often necessary to inject an injection into a patient in advance, and to insert an endoscope after a certain period of time to observe the outline of a lesion, the waiting period is long, the operation efficiency is low, and the illness state may be delayed. In addition, the actual developing effect is poor, the focus is difficult to be clearly observed by medical staff, and a certain surgical risk still exists.

Disclosure of Invention

In view of the above drawbacks of the related art, the present application provides an insertion portion and an endoscope to solve the above problems.

The application provides an inserting part which is used for an endoscope, the inserting part comprises an inserting main body, a conveying pipe, an instrument pipe and a second air bag, the inserting main body comprises a front end seat and a camera module arranged in the front end seat, the front end seat is provided with an instrument channel and a telescopic channel, the outer surface of the inserting main body is provided with a first air bag, the conveying pipe is communicated with the first air bag and is used for injecting media into the first air bag, the instrument pipe extends into the instrument channel, the second air bag is positioned in the telescopic channel, the second air bag comprises an expansion section and a telescopic section, the telescopic section can extend out of the front end seat, one end of the telescopic section is connected with the front end seat, the other end of the telescopic section is connected with the expansion section, when the telescopic section extends to a preset position, the telescopic section is communicated with the expansion section, and the media drive the telescopic section to extend out of the front end seat and drive the expansion section to move towards a direction far away from the first air bag so as to form a detection space between the expansion section and the first air bag.

In an embodiment of the present application, when the volume of the first air bag is equal to the preset volume, the pressure value in the first air bag is equal to the first preset pressure value.

In an embodiment of the present application, the insertion portion further includes a first pressure valve, the first pressure valve is disposed between the first air bag and the expansion section, the first pressure valve is opened when the pressure value in the first air bag is greater than or equal to a first preset pressure value, the first air bag is communicated with the expansion section, the medium can flow to the expansion section, and the first pressure valve is closed when the pressure value in the first air bag is less than the first preset pressure value, and isolates the first air bag from the expansion section.

In an embodiment of the application, the insertion body further includes a communicating tube, one end of the communicating tube is connected to the first air bag, the other end of the communicating tube is connected to the expansion section and extends to a distal end of the expansion section, and the first pressure valve is disposed on the communicating tube.

In an embodiment of the present application, the expansion section is connected to a distal end of the expansion section, the expansion section has a plurality of expansion portions, and the expansion portions can be axially contracted in the expansion channel, and in a process that the expansion section extends out of the front end seat, the expansion portions sequentially extend out from the distal end to the proximal end of the expansion section.

In an embodiment of the present application, the second air bag further includes a second pressure valve, the second pressure valve is disposed between the first air bag and the expansion section and located at a distal end of the expansion section, when the expansion section stretches to a preset position, the pressure value of the expansion section can be raised to a second preset pressure value, the second pressure valve is opened, the expansion section is communicated with the expansion section, and a medium can flow into the expansion section, wherein the first preset pressure value is smaller than the second preset pressure value.

In one embodiment of the application, the expansion section is configured as a bellows.

In one embodiment of the present application, the first pressure valve and the second pressure valve are flaps.

In an embodiment of the present application, a reflective layer is disposed outside the expansion section and/or the expansion section.

In an embodiment of the application, the insertion portion further includes a negative pressure tube, the negative pressure tube is communicated with the communicating tube, and the negative pressure tube can provide negative pressure for the communicating tube to drive at least part of the second air bag to shrink in the telescopic channel along the axial direction and drive the first air bag to shrink.

In an embodiment of the application, the insertion portion further includes a mounting tube, the second air bag is disposed in the mounting tube, and the mounting tube is detachably mounted in the telescopic channel.

In an embodiment of the present application, the telescopic path of the telescopic section is located in the visual field of the camera module, the insertion main body further includes an active bending section, the distal end of the active bending section is connected to the insertion main body, the first air bag is disposed at the distal end of the active bending section, the active bending section is provided with a through hole penetrating through the inside and the outside, the through hole is communicated with the first air bag, and the distal end of the conveying pipe extends to the distal end of the active bending section and is communicated with the through hole.

To achieve the above and other related objects, the present application provides an endoscope including the foregoing insertion portion.

The technical scheme adopted by the invention has the beneficial effects that the insertion part can be inserted into the body of a patient, the far end of the insertion part can extend to the vicinity of a focus, and the camera module of the insertion main body can observe the focus. Medical staff injects medium (such as sterilized air, etc.) into the delivery tube, and the medium is injected into the first air bag. The first air bag is expanded to a preset volume, and can be abutted against the wall of the cavity in the patient at the moment so as to enable the insertion main body and the wall of the cavity to be relatively fixed. Simultaneously, first gasbag and flexible section intercommunication, the medium can get into flexible section. Under the action of the medium, the telescopic section stretches out of the front end seat and stretches to a preset position. The expansion section is communicated with the expansion section. The medium is injected into the expansion section, and the expansion of the expansion section becomes larger. The arrangement can form a relatively closed detection space between the expansion section and the first air bag, and the focus is positioned in the detection space. At this time, a developing medium (such as a fluorescent liquid or the like) is injected through the instrument tube. The detection space carries out fluorescent marking on the focus, thereby avoiding the loss of a large amount of fluorescent liquid and reducing the consumption of the fluorescent liquid. Meanwhile, the loss of the fluorescent liquid is reduced, and the insertion part can acquire a clearer image while using less fluorescent liquid.

In addition, the fluorescence detection is realized in real time in the process of placing the insertion part, the operation time is greatly shortened, and the operation efficiency is improved. In the whole process, the focus is always stable in the visual field range of the camera module, the damage to the inner wall of the cavity channel caused by the first air bag and the second air bag is avoided, the use safety and the control convenience of the insertion part are improved, and the operation risk is reduced.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that 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 view of an insertion portion shown in an exemplary embodiment of the present application;

FIG. 2 is a cross-sectional view of an insert portion shown in an exemplary embodiment of the present application;

FIG. 3 is a cross-sectional view of another insert portion shown in accordance with an exemplary embodiment of the present application;

FIG. 4 is an enlarged view at a in FIG. 3;

fig. 5 is a schematic view showing the structure of a first telescopic portion and a second telescopic portion according to an exemplary embodiment of the present application;

FIG. 6 is a cross-sectional view of yet another insert portion shown in accordance with an exemplary embodiment of the present application;

FIG. 7 is a cross-sectional view of yet another insert portion shown in accordance with an exemplary embodiment of the present application;

FIG. 8 is a schematic view showing the structure of an insertion part in a human organ according to an exemplary embodiment of the present application;

FIG. 9 is a schematic view showing the structure of a negative pressure tube and a second balloon according to an exemplary embodiment of the present application;

fig. 10 is a schematic structural view of an endoscope shown in an exemplary embodiment of the present application.

In the figure, 1, an endoscope, 100, an insertion part, 110, an insertion main body, 111, a front end seat, 112, an imaging module, 113, an instrument channel, 114, a telescopic channel, 115, a communicating pipe, 116, a first balloon, 117, a first pressure valve, 120, a delivery pipe, 130, an instrument pipe, 140, a second balloon, 141, an expansion section, 142, a telescopic section, 143, a telescopic part, 1431, a first telescopic part, 1432, a second telescopic part, 144, a second pressure valve, 145, a reflecting layer, 150, a detection space, 160, a negative pressure pipe, 170, an active bending section, 180, an installation pipe, 190 and a through hole are shown.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In various embodiments of the present application, "proximal" and "distal" refer to the location of the components relative to the user's far and near position in the environment of use, wherein the end closer to the user is designated as "proximal" and the end farther from the user is designated as "distal".

However, in actual operation, it is often necessary to inject an injection into a patient in advance, and to insert an endoscope after a certain period of time to observe the outline of a lesion, the waiting period is long, the operation efficiency is low, and the illness state may be delayed.

The present application provides an insertion portion 100. Referring to fig. 1, the insertion portion 100 is used for an endoscope 1. The insertion portion 100 can be inserted into a human body cavity to realize an operation of the endoscope 1 to view the human body cavity internally.

Referring to fig. 1 and 2, the insertion portion 100 may include an insertion body 110, a delivery tube 120, an instrument tube 130, and a second balloon 140, the delivery tube 120 and the instrument tube 130 extending into the insertion body 110, the second balloon 140 being disposed in the insertion body 110.

With continued reference to fig. 2, the insertion body 110 may include a front end base 111 and a camera module 112, where the camera module 112 is disposed in the front end base 111. The front end base 111 is provided with an instrument channel 113 and a telescopic channel 114. Illustratively, instrument channel 113 and telescoping channel 114 extend axially through front end housing 111 such that instrument channel 113 and telescoping channel 114 extend distally of front end housing 111.

Referring back to fig. 2, instrument tube 130 extends into instrument channel 113, instrument tube 130 can extend to the distal end of instrument channel 113, and instrument tube 130 can be inserted into a treatment instrument, such as a biopsy forceps, for subsequent manipulation. Or the instrument tube 130 can inject a developing medium (such as fluorescent liquid) into the human body cavity, the developing medium flows to the focus, and the camera module 112 can observe the fluorescent image of the focus. The fluorescence image is overlapped and fused to the white light image, and medical staff can observe the focus marked by fluorescence in a white light mode, so that important blood vessels and normal tissues are prevented from being excised, the operation efficiency is improved, and the operation risk is reduced.

With continued reference to fig. 2, a delivery tube 120 communicates with the first balloon 116, and the delivery tube 120 is used to inject a medium into the first balloon 116. The medical practitioner delivers media to the proximal end of delivery tube 120 to control the inflation volume of first balloon 116 to avoid over-squeezing the body lumen. In addition, the medical staff can change the flow rate and the pressure of the medium by controlling the opening of the conveying pipe 120, the positive pressure source and the like, so that the expansion process of the first air bag 116 is smooth, the medical staff can operate more conveniently, and the discomfort of a patient is reduced.

Referring to fig. 3, the outer surface of the insertion body 110 is provided with a first balloon 116, and the first balloon 116 is capable of containing and storing a certain volume or pressure of medium. Wherein the medium includes, but is not limited to, sterilized oxygen or air, etc. As the medium is continuously injected into the first balloon 116, the first balloon 116 expands and is supported within the body lumen wall. When the detection is completed, the first balloon 116 can be contracted, avoiding the first balloon 116 from obstructing the extraction operation of the insertion portion 100.

Further, with continued reference to fig. 2 and 3, the first balloon 116 is disposed at the distal end of the active bending section 170, and the active bending section 170 is provided with a through hole 190 extending therethrough. In other words, the first balloon 116 may be disposed between the active bending section 170 and the front end seat 111. The first airbag 116 may be attached by bonding, ultrasonic welding, or the like, and is not limited thereto. The through hole 190 communicates with the first balloon 116, and the distal end of the delivery tube 120 extends to the distal end of the active bending section 170 and communicates with the through hole 190. Illustratively, the through hole 190 is formed between the active bending section 170 and the front end seat 111, the first air bag 116 may be disposed at a distal end of the active bending section 170, and an installer may install the first air bag 116 on the active bending section 170 before connecting the active bending section 170 and the front end seat 111. This arrangement can enable the installer to perform the mounting operation of the first airbag 116 in a larger space, improving the mounting efficiency of the first airbag 116.

It will be appreciated that the deformation of the first bladder 116 is affected by the volume or material of the medium therein, and that the volume of the medium is greater in the first bladder 116 of the same material, and the deformation of the first bladder 116 is greater and the internal stored pressure value is greater. Wherein, the stored pressure value in the first air bag 116 may be the pressure value of the medium in the first air bag 116.

The stored pressure value within the first bladder 116 is equal to the first preset pressure value, with the volume of the first bladder 116 equal to the preset volume. The arrangement can promote the volume of the first air bag 116 to directly influence the pressure of the first air bag 116, adjust the expansion size of the first air bag 116 and the extrusion force to the wall of the human body cavity, and also ensure that the pressure value tends to be controllable, thereby ensuring that the first air bag 116 can be stably supported in the wall of the human body cavity.

In a more specific embodiment, the insertion portion 100 further includes a first pressure valve 117, where the first pressure valve 117 is disposed between the first air bag 116 and the expansion section 142, the first pressure valve 117 is opened when the pressure value in the first air bag 116 is greater than or equal to a first preset pressure value, the first air bag 116 is communicated with the expansion section 142, the medium can flow to the expansion section 142, and the first pressure valve 117 is closed when the pressure value in the first air bag 116 is less than the first preset pressure value, and isolates the first air bag 116 from the expansion section 142. When the first balloon 116 is inflated, the first pressure valve 117 is closed to ensure that the first balloon 116 can preferentially expand and support the wall of the body cavity, which can relatively fix the insertion body 110 around the lesion, improving the subsequent detection accuracy and detection effect.

In this embodiment, referring to fig. 2 and 3, the second air bag 140 is located in the telescopic channel 114, and the second air bag 140 may include an expansion section 141 and a telescopic section 142, where the telescopic section 142 can extend out of the front end seat 111, one end of the telescopic section 142 is connected to the front end seat 111, and the other end is connected to the expansion section 141. When the volume of the first bladder 116 is greater than or equal to the preset volume, the first bladder 116 communicates with the telescoping section 142. The medium drives the expansion section 142 to extend out of the front end seat 111, and the expansion section 142 drives the expansion section 141 to move towards a direction away from the first air bag 116 (as shown by L1 in fig. 3), so that a detection space 150 is formed between the expansion section 141 and the first air bag 116. In this process, the expansion section 142 and the expansion section 141 are relatively independent, and the medium does not go to the expansion section 141, and the expansion section 141 is in a contracted state. The expansion section 141 in the contracted state is smaller in volume, and the expansion section 141 can be extended into a narrow space under the driving of the expansion section 142. In addition, the small-volume expansion section 141 does not scratch the wall of the body cavity, and the use safety of the endoscope 1 is improved.

In one embodiment, referring to fig. 3 and 4, the insertion body 110 may further include a communication tube 115, one end of the communication tube 115 is connected to the first air bag 116, and the other end is connected to the expansion section 142. When first balloon 116 is inflated by external pressure or internal inflation, its medium may be transferred to telescoping section 142 via communication tube 115. The first pressure valve 117 is disposed on the communication pipe 115, and the communication pipe 115 can provide a setting position for the first pressure valve 117, so that the first pressure valve 117 can control the inflation sequence of the first air bag 116 and the second air bag 140, and the subsequent detection precision and the detection effect are improved.

Moreover, the communicating tube 115 extends to the distal end of the telescopic section 142, which not only ensures that the medium can directly act on the distal end of the telescopic section 142, reduces the path length of the medium in the telescopic section 142, also reduces the power loss of the medium conveyed to the distal end of the telescopic section 142, improves the acting effect of the medium, but also enables the telescopic section 142 to gradually extend from the distal end to the proximal end after receiving the medium. Sequential extension of telescoping sections 142 may help medical personnel to more precisely control the distal position of telescoping sections 142 for greater precision and safety in performing surgery or examination.

In this embodiment, referring to fig. 3 and 4, the expansion section 141 is connected to the distal end of the expansion section 142, the expansion section 142 has a plurality of expansion parts 143, and the number of expansion parts 143 includes, but is not limited to, 2,3, or more. The plurality of telescopic parts 143 can axially retract in the telescopic channel 114, and during the process that the telescopic sections 142 extend out of the front end seat 111, the plurality of telescopic parts 143 sequentially extend out from the distal end to the proximal end of the telescopic sections 142. Illustratively, as shown in fig. 5, the plurality of telescoping portions 143 may include a first telescoping portion 1431 and a second telescoping portion 1432, with the first telescoping portion 1431 and the second telescoping portion 1432 being connected to each other and both being capable of telescoping. The first telescoping portion 1431 and the second telescoping portion 1432 retract into the telescoping passage 114, the first telescoping portion 1431 being located on a side of the second telescoping portion 1432 that is adjacent to the expansion section 141. The first telescoping portion 1431 is deformed and extended in the distal to proximal order of the telescoping section 142. Further, the second expansion and contraction portion 1432 deforms and protrudes. According to the sequence, the telescopic parts 143 can be ensured to be in the telescopic channels 114 to deform, the telescopic channels 114 can limit the telescopic directions of the telescopic parts 143, the telescopic parts 143 are prevented from stretching towards different directions, the directions are uncontrollable, the controllable degree of the telescopic directions of the telescopic sections 142 is improved, and the telescopic sections 142 are prevented from colliding with the walls of the human body.

In one embodiment, referring still to FIG. 3, the telescoping section 142 may be configured as a bellows. A bellows is a tubular elastic element with axial corrugations. Bellows absorb or compensate the displacement, stress and vibration generated by the pipeline through the elastic deformation of the bellows under the condition of bearing pressure or axial force. In other words, the bellows can deform and shrink along the axial direction, and the bellows can resist excessive deformation in the radial direction, so that the bellows is prevented from collapsing under the negative pressure condition, and the use safety of the telescopic section 142 is ensured.

Preferably, as shown in fig. 6, the telescopic path of the telescopic section 142 is located in the field of view of the camera module 112, in other words, the camera module 112 can collect the specific telescopic condition of the telescopic section 142. The insertion body 110 may also include an active bending section 170, with the distal end of the active bending section 170 being connected to the insertion body 110. The active bending section 170 is bendable upon manipulation by a healthcare worker, and the insertion body 110 is connected to the distal end of the active bending section 170. During bending of the active bending section 170, the insertion body 110 can be disposed toward a plurality of different directions. By controlling the active bending section 170, a healthcare worker can adjust the position and orientation of the insertion body 110 to enable the insertion body 110 to view or treat a lesion.

It is appreciated that the first balloon 116 abuts the inner wall of the lumen of the human body. With the first air bag 116 as a fulcrum, the active bending section 170 can adjust the extending direction of the active bending section 142 in the extending process of the extending section 142, so that the extending section 142 avoids the inner wall of the cavity, and the risk of scratch is avoided. Wherein the first balloon 116 is capable of providing a supporting function so that the position or orientation of the insertion body 110 tends to be controllable, and avoids the phenomena of dislocation or offset of the insertion body 110 at the active bending section 170.

In this embodiment, referring to fig. 6 and 7, the expansion section 142 can take the expansion section 141 away from the first air bag 116, so that the first air bag 116 and the expansion section 141 are spaced apart and form the detection space 150. Under the operation of the healthcare worker, the first balloon 116 and the inflation segment 141 are distributed on opposite sides of the lesion, which is within the detection space 150. As shown in fig. 8, when the expansion section 142 is extended to the preset position, the expansion section 142 and the expansion section 141 communicate with each other. The medium can enter the expansion section 141, and the expansion section 141 expands and is supported in the human body cavity wall c. The inflation segment 141 and the first balloon 116 are capable of occluding both ends of the detection space 150 to form a relatively enclosed detection space 150. In addition, lesion b is within the examination space 150. At this time, a developing medium (e.g., a fluorescent liquid, etc.) is injected through the instrument tube 130. The detection space 150 carries out fluorescent marking on the focus b, so that a great deal of loss of fluorescent liquid is avoided, and the consumption of the fluorescent liquid can be reduced. At the same time, the loss of phosphor is reduced, and the insertion portion 100 can obtain a clearer image while using less phosphor. In addition, the above-mentioned processes all occur during the insertion process of the insertion portion 100, in other words, the fluorescence detection is immediately implemented during the insertion process of the insertion portion 100, so that the operation time is greatly shortened, and the operation efficiency is improved.

In a specific embodiment, referring to fig. 7, the second balloon 140 may further include a second pressure valve 144, the second pressure valve 144 being disposed between the first balloon 116 and the telescoping section 142 and distal to the telescoping section 142. When the telescoping section 142 reaches the preset position, the telescoping section 142 is now fully extended. Subsequently, the pressure value of the expansion section 142 continues to rise to a second preset pressure value, the second pressure valve 144 is opened, the expansion section 142 is communicated with the expansion section 141, and the medium can flow into the expansion section 141. Wherein the first preset pressure value is smaller than the second preset pressure value. This arrangement ensures that the expansion section 141 is expanded again after the telescoping section 142 has been fully extended. This arrangement reduces the risk of the expansion section 141 scratching the walls of the body cavity as compared to when the expanded section 141 is driven by the telescopic section 142.

It is understood that both the first pressure valve 117 and the second pressure valve 144 may be flaps. When the stored pressure value is greater than or equal to the first preset pressure value, the pressure difference overcomes the closing force of the membrane flap to open the membrane flap. The automatic opening device can be automatically opened, and the operation steps of medical staff are reduced. In addition, the flap has unidirectional flow capability, which can promote unidirectional flow of the medium and avoid the reverse flow of the medium from affecting the extension or inflation effect of the second balloon 140.

Preferably, as shown in fig. 7, the expansion section 141 and/or the expansion section 142 is provided with a reflective layer 145, that is, at least one of the expansion section 141 and the expansion section 142 is provided with the reflective layer 145, and the reflective layer 145 is capable of reflecting light. The light reflecting layer 145 may be sprayed or coated. The light may be generated by the illumination module of the insertion portion 100. When light is irradiated onto the light reflecting layer 145, the light is reflected back to the original direction or scattered at a specific angle, thereby enhancing the light intensity of the area around the lesion. The arrangement can enhance the light intensity of the surface of the focus, and can also enable the outline of the focus to be clear, so that the camera module 112 can clearly collect specific conditions of the focus, such as the size and the position of the focus.

In this embodiment, referring to fig. 9, the insertion portion 100 may further include a negative pressure tube 160, where the negative pressure tube 160 is connected to the communication tube 115, and the negative pressure tube 160 is capable of providing a negative pressure for the communication tube 115 to drive at least a portion of the second air bag 140 to shrink in the expansion channel 114 along the axial direction and drive the first air bag 116 to shrink. Illustratively, a proximal end of suction tube 160 is connected to a source of suction and a distal end thereof extends to an end of communication tube 115 proximate telescoping segment 142. When the negative pressure source starts to operate, negative pressure is generated in the negative pressure pipe 160, and negative pressure atmosphere is also generated in the expansion section 142. Under the action of the negative pressure, the telescoping section 142 contracts in its axial direction and into the telescoping passage 114. Further, during the process of retracting the telescopic section 142 into the front end seat 111, the plurality of telescopic parts 143 of the telescopic section 142 are sequentially retracted from the proximal end to the distal end of the telescopic section 142, so as to avoid the influence on the trafficability of the insertion part 100 caused by the extension of the telescopic section 142 during the subsequent extraction of the insertion part 100.

It is understood that negative pressure tube 160 may be provided with a branch that may extend directly to a side of communication tube 115 proximate first bladder 116 and communicate with first bladder 116. The negative pressure tube 160 generates a negative pressure, which can also drive the first balloon 116 to contract, and will not be described in detail herein.

In another case, referring back to fig. 4, the insertion portion 100 may further include a mounting tube 180, the second balloon 140 being disposed within the mounting tube 180, the mounting tube 180 being detachably mounted within the telescopic channel 114. The connection manner between the mounting tube 180 and the front end base 111 may be a clamping connection or a threaded connection, and the present embodiment is not limited thereto. The arrangement of the mounting tube 180 may optimize the mounting operation of the second airbag 140. In particular, the second balloon 140 may be pre-installed inside the installation tube 180, which may allow an assembler to perform in a relatively spacious and easy to operate environment, thereby avoiding direct installation of the second balloon 140 inside the narrow insertion portion 100. The preassembly of the second airbag 140 and the subsequent installation of the entire installation tube 180 greatly simplify the installation process and also improve the installation accuracy and safety.

To achieve the above and other related objects, the present application provides an endoscope 1, referring to fig. 10, the endoscope 1 may include the insertion portion 100 described above. Thus, the endoscope 1 has the beneficial effects of any of the above-described embodiments, and will not be described in detail herein. The endoscope 1 of the embodiment of the application can be a nephroscope, a bronchoscope, a esophagoscope, a gastroscope, a enteroscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope and the like.

The technical scheme adopted by the invention has the beneficial effects that the insertion part 100 can be inserted into the body of a patient, the distal end of the insertion part 100 can extend to the vicinity of a focus, and the camera module 112 of the insertion body 110 can observe the focus. The healthcare worker injects a medium (e.g., sterilized air, etc.) into the delivery tube 120, which injects the first balloon 116. The first balloon 116 is inflated to a predetermined volume, at which time the first balloon 116 can abut against the wall of the cavity in the patient to fix the insertion body 110 and the wall of the cavity relatively. At the same time, first balloon 116 is in communication with telescoping section 142 and media can enter telescoping section 142. Under the action of the medium, the telescopic section 142 extends out of the front end seat 111 and reaches a preset position. The telescoping section 142 communicates with the expansion section 141. The medium is injected into the expansion section 141, and the expansion section 141 expands greatly. This arrangement may allow a relatively enclosed examination space 150 to be formed between the inflation segment 141 and the first balloon 116, with the lesion within the examination space 150. At this time, a developing medium (e.g., a fluorescent liquid, etc.) is injected through the instrument tube 130. The detection space 150 carries out fluorescence labeling on the focus, so that a great deal of loss of fluorescent liquid is avoided, and the consumption of the fluorescent liquid can be reduced. At the same time, the loss of phosphor is reduced, and the insertion portion 100 can obtain a clearer image while using less phosphor.

In addition, fluorescence detection is immediately realized during the insertion of the insertion portion 100, so that the operation time is greatly shortened, and the operation efficiency is improved. In the whole process, the focus is always stable in the visual field range of the camera module 112, so that the damage to the inner wall of the cavity caused by the first air bag 116 and the second air bag 140 is avoided, the use safety and the control convenience of the insertion part 100 are improved, and the operation risk is reduced.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.

Claims (10)

1. An insertion portion for an endoscope, the insertion portion comprising:

The device comprises an insertion main body, a first air bag and a second air bag, wherein the insertion main body comprises a front end seat and a camera module arranged in the front end seat, the front end seat is provided with an instrument channel and a telescopic channel, and the outer surface of the insertion main body is provided with the first air bag;

The conveying pipe is communicated with the first air bag and used for injecting a medium into the first air bag;

An instrument tube extending into the instrument channel; the second air bag is positioned in the telescopic channel and comprises an expansion section and a telescopic section, the telescopic section can extend out of the front end seat, one end of the telescopic section is connected with the front end seat, the other end of the telescopic section is connected with the expansion section, and when the telescopic section extends to a preset position, the telescopic section is communicated with the expansion section;

When the volume of the first air bag is larger than or equal to the preset volume, the first air bag is communicated with the telescopic section, the medium drives the telescopic section to extend out of the front end seat, and drives the expansion section to move towards the direction away from the first air bag, so that a detection space is formed between the expansion section and the first air bag.

2. The insert of claim 1, wherein the pressure value within the first bladder is equal to a first preset pressure value at a volume of the first bladder equal to a preset volume.

3. The insert according to claim 2, further comprising a first pressure valve disposed between the first bladder and the telescoping section, the first pressure valve being open when the pressure value within the first bladder is greater than or equal to the first preset pressure value, the first bladder being in communication with the telescoping section, the medium being capable of flowing to the telescoping section, the first pressure valve being closed when the pressure value within the first bladder is less than the first preset pressure value, and isolating the first bladder from the telescoping section.

4. The insertion portion according to claim 3, wherein the insertion body further includes a communication pipe having one end connected to the first air bag and the other end connected to the expansion section and extending to a distal end of the expansion section, the first pressure valve being provided to the communication pipe.

5. The insertion portion according to claim 4, wherein the expansion section is connected to a distal end of the expansion section, the expansion section has a plurality of expansion portions, the expansion portions are axially contractible in the expansion passage, and the expansion portions sequentially extend from the distal end to the proximal end of the expansion section during the expansion section extends out of the front end seat.

6. The insert of claim 4, wherein the second balloon further comprises a second pressure valve disposed between the first balloon and the telescoping section and distal to the telescoping section, the telescoping section pressure value being capable of increasing to a second preset pressure value when the telescoping section is extended to a preset position, the second pressure valve being open, the telescoping section being in communication with the expansion section, the medium being capable of flowing into the expansion section, the first preset pressure value being less than the second preset pressure value.

7. The insert of claim 6, wherein the telescoping section is configured as a bellows;

And/or the first pressure valve and the second pressure valve are flaps;

And/or a reflective layer is arranged outside the expansion section and/or the telescopic section.

8. The insert of claim 4, further comprising a negative pressure tube in communication with the communication tube, the negative pressure tube capable of providing negative pressure to the communication tube to urge at least a portion of the second balloon to retract axially within the telescoping passageway and to urge the first balloon to retract;

and/or, the insertion part further comprises a mounting tube, the second air bag is arranged in the mounting tube, and the mounting tube is detachably arranged in the telescopic channel.

9. The insertion portion according to any one of claims 1 to 7, wherein the telescopic path of the telescopic section is located in the visual field of the camera module, the insertion body further comprises an active bending section, a distal end of the active bending section is connected to the insertion body, the first balloon is disposed at the distal end of the active bending section, the active bending section is provided with a through hole penetrating inside and outside, the through hole is communicated with the first balloon, and the distal end of the delivery tube extends to the distal end of the active bending section and is communicated with the through hole.

10. An endoscope comprising an insertion portion according to any one of claims 1 to 9.