CN220192968U

CN220192968U - Endoscope

Info

Publication number: CN220192968U
Application number: CN202321519798.1U
Authority: CN
Inventors: 许程浩; 寇鹏; 葛泉波; 张忠民
Original assignee: Leo Medical Co ltd
Current assignee: Leo Medical Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-12-19
Anticipated expiration: 2033-06-15

Abstract

The utility model relates to an endoscope, comprising a catheter and a first catheter hub, wherein at least part of the area of the catheter is penetrated in the first catheter hub; the first catheter hub is Y-shaped and comprises a first working main path and a first working branch path, and the first working main path and the first working branch path are in arc smooth transition; at least part of the conduit is penetrated in the first working main path; the free end of the first working branch is connected with a second catheter hub, and the first working branch is clamped with the second catheter hub and fixed by bonding. The utility model sets two Y-shaped conduit central parts in the handle, which comprises a first conduit central part and a second conduit central part, wherein the first conduit central part is equivalent to the Y-shaped part in the prior art, the structure of the first conduit central part comprises a first working main path and a first working branch path, the two working main paths are connected in an arc shape smoothly, so as to facilitate the introduction of instruments, and the first working branch path is clamped and bonded with the second conduit central part, thereby reducing the production difficulty.

Description

Endoscope

Technical Field

The utility model relates to the field of medical instruments for interventional procedures, in particular to an endoscope.

Background

The biliary tract direct vision sub-mirror system through the duodenal endoscope is gradually accepted by the market, and researches prove that the occurrence rate of complications of the biliary tract sub-mirror system is not increased compared with ERCP, and the safety of the biliary tract direct vision sub-mirror system is further proved. Compared with the traditional ERCP operation, the biliary tract sub-lens system has the advantages that the pathological changes and calculus conditions in the biliary tract are directly observed through the camera of the biliary tract sub-lens system, so that the treatment accuracy of biliary tract diseases is greatly improved.

In the prior art, currently operating handles for endoscopes such as biliary tract endoscopes, e.g. Boston scienceThe biliary tract sub-scope direct vision system has the advantages that the Y-shaped central part on the operating handle of the product is sealed by ultrasonic welding and dispensing, the process is complex, the realization difficulty is high, and the production cost is increased; further, currently, either the delivery is difficult or the angle of the Y-hub design is small when delivering the therapeutic device through the Y-hub into the catheter interior lumen.

Disclosure of Invention

The utility model discloses an endoscope, which aims to solve the technical problems in the prior art.

The present utility model provides, in one embodiment, an endoscope comprising a catheter and a first catheter hub;

at least a partial region of the catheter is threaded into the first catheter hub;

the first catheter hub is Y-shaped and comprises a first working main path and a first working branch path, and the first working main path and the first working branch path are in arc smooth transition;

at least part of the conduit is penetrated in the first working main path;

the free end of the first working branch is connected with a second catheter hub, and the first working branch is clamped with the second catheter hub and fixed by bonding.

As a preferable technical scheme, the second catheter hub is Y-shaped, and the second catheter hub comprises a second working main path and a second working branch path; one end of the second working main path is clamped with the second catheter hub and fixed by adhesion.

As a preferable technical scheme, the valve also comprises a Y valve and a gas-liquid conduit,

the other end of the second working main path is connected with a Y valve;

the second working branch is connected with the gas-liquid conduit.

As an optimal technical scheme, the Y valve comprises a main path and a branch path; the main path of the Y valve can be opened or closed, when the main path of the Y valve is opened, a therapeutic apparatus can be accessed through the main path of the Y valve, and when the main path of the Y valve is closed, flushing or negative pressure suction can be performed through the branch path of the Y valve.

As an optimal technical scheme, the top end of the first catheter hub is provided with a plurality of semicircular branching holes.

As a preferable technical scheme, three branching holes are arranged.

As a preferred technical scheme, at least a partial region of the haulage rope is axially arranged in the catheter, and the haulage rope passes through the branching hole.

As an optimal technical scheme, four traction ropes are arranged, and each branching hole comprises a large branching hole and two small branching holes; wherein two haulage ropes respectively pass two little separated time holes correspondingly, and two other haulage ropes pass a big separated time hole.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

in one embodiment of the utility model, two Y-shaped catheter hubs are arranged in the handle, the two Y-shaped catheter hubs comprise a first catheter hub and a second catheter hub, wherein the first catheter hub is equivalent to the Y-shaped member in the prior art, the structure of the first catheter hub comprises a first working main path and a first working branch path, the first working branch path and the first working branch path are in arc smooth connection, so that the introduction of an instrument is facilitated, the first working branch path and the second catheter hub are clamped and bonded, the production difficulty is reduced, in addition, the free end of the second catheter hub is also connected with a Y valve, the arrangement of the Y valve can facilitate the handle to switch the therapeutic instrument or realize suction and flushing, and the operation difficulty in operation is simplified; meanwhile, due to the structural design of the branching holes, the risk of intertwining when a plurality of traction ropes turn is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments are briefly described below to form a part of the present utility model, and the exemplary embodiments of the present utility model and the description thereof illustrate the present utility model and do not constitute undue limitations of the present utility model. In the drawings:

FIG. 1 is a partial cross-sectional view of an endoscope disclosed in an embodiment of the present utility model;

FIG. 2 is a partial perspective cutaway view of an endoscope disclosed in an embodiment of the present utility model;

FIG. 3 is a schematic illustration of the connection of a first catheter hub and a second catheter hub according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a connection of a first catheter hub and a second catheter hub in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic view of a first catheter hub according to an embodiment of the present utility model.

Reference numerals illustrate:

the drawing rope 100, the drawing fixing terminal 200, the turntable 300, the first pipe hub 400, the first working main path 410, the liquid injection port 411, the glue injection hole 412, the first working branch path 420, the second pipe hub 500, the second working main path 510, the second working branch path 520, the pipe 600, the Y valve 700, the gas-liquid pipe 800, the valve 810, and the branching hole 900.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. In the description of the present utility model, it should be noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the magnetic connection can be mechanical connection or magnetic connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In particular, in the description of the utility model, those skilled in the art will understand that the terms "proximal" and "distal" are relative to the operator unless explicitly specified and defined otherwise; the "proximal" is the end of the endoscope that is closer to the user in one dimension when the endoscope is held and operated, and the "distal" is the end of the endoscope that is further from the user in one dimension when the endoscope is held and operated. And those skilled in the art will appreciate that the terms "distal" and "proximal" do not refer to a straight line distance from the user's three-dimensional space.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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.

Example 1

To solve the problems of the prior art, the present utility model provides an endoscope, referring to fig. 1 to 5, in a preferred embodiment, a catheter 600 and a first catheter hub 400 are provided inside the endoscope, the first catheter hub 400 having a substantially Y-shape, including a first working channel 410 and a first working channel 420, wherein the catheter 600 is axially disposed in the first working channel 410. Preferably, the first working main path 410 is further provided with a liquid filling port 411.

Specifically, the catheter 600 in this embodiment has the same structure as the catheter 600 in embodiment 1 described above, and the catheter 600 is circumferentially provided with irrigation channels or other gas-liquid channels, working channels, imaging channels, illumination channels, and the like, each extending in the axial direction of the catheter 600.

When the catheter 600 is installed, the catheter 600 is first inserted into the first working main path 410, and glue is injected through the glue injection hole 412, so that sealing fixation of the catheter 600 and the first working main path 410 is realized, an opening communicated with the liquid injection port 411 is formed in the catheter 600, and the liquid injection port 411 can be used for injecting liquid only through a channel in the catheter 600, so that backflow and turbulence of water liquid are prevented.

Preferably, the first working branch 420 is substantially arc-shaped, and the first working branch 420 is in smooth transition with the first working branch 410 to facilitate penetration of the surgical therapeutic instrument into the human body for treatment.

Further, a second catheter hub 500 is further connected to the free end of the first working branch 420, and the second catheter hub 500 includes a second working main path 510 and a second working branch 520, preferably, a splicing groove is disposed at the free end of the first working branch 420, and a prefabricated corresponding bump is disposed at one end of the second working main path 510, and the two are connected in a clamping manner and are bonded by glue.

The proximal end of the traction rope 100 is fixed on the traction fixing terminal 200, most of the area of the traction rope 100 axially penetrates through the catheter 600, the proximal end of the catheter 600 is located in an endoscope, the distal end of the catheter 600 can enter a focus position through a human lumen, and acquisition of focus position images is realized based on a camera module in the catheter 600, further, the catheter 600 is a multi-cavity tube, the traction ropes 100 are respectively arranged at side positions of the catheter 600 in the upper, lower, left and right directions, wherein the traction ropes 100 opposite to each other in the upper, lower directions are connected to the same rotary table 300, when the rotary table 300 rotates, one of the traction ropes 100 in the upper, lower directions is retracted, one of the traction ropes 100 extends forwards to drive the catheter 600 to bend in the retracting direction of the traction ropes 100, so that bending of the distal end of the catheter 600 in the upper, lower directions is realized, and the traction ropes 100 opposite in the left, and right directions are also connected to the other rotary table 300, and when the rotary table rotates, one of the traction ropes 100 in the left and right directions is retracted to drive the catheter 600 to bend in the retracting direction of the traction ropes 100, so that bending of the distal end of the catheter 600 in the left and right directions is realized. Further specifically, the top end of the first catheter hub is provided with a plurality of semicircular branching holes 200, preferably three branching holes, including one large branching hole and two small branching holes, wherein two traction ropes respectively pass through the two small branching holes correspondingly, and the other two traction ropes pass through one large branching hole; the turntable rotates to drive the traction ropes 100 to rotate, and the structural design of the branching holes prevents the traction ropes 100 from intertwining.

As shown in fig. 1 and 2, in a preferred embodiment of the present utility model, a pair of traction fixing terminals 200 are provided opposite to each other on each turntable 300, and when the turntable 300 rotates, the traction ropes 100 are wound around the circumference of the turntable 300 or from the circumference Jie Chanrao of the turntable 300. Specifically, since the pair of traction fixing terminals 200 are disposed opposite to each other, when one traction rope 100 is continuously wound around the outer circumference of the turntable 300, the other traction rope 100 is fed to the outer circumference Jie Chanrao of the turntable 300, thereby driving the guide tube 600 to bend toward the traction rope 100 continuously wound.

Compared with the prior art, the structure provided by the embodiment is provided with two Y-shaped catheter hubs inside the handle, comprising the first catheter hub and the second catheter hub, wherein the first catheter hub is equivalent to the Y-shaped member in the prior art, and the structure comprises the first working main path and the first working branch path which are in arc smooth connection, so that the introduction of an instrument is facilitated, the first working branch path and the second catheter hub are clamped and bonded, the production and manufacturing difficulty is greatly reduced, and the qualification rate of waterproof sealing and the passing rate of the therapeutic instrument into the catheter 600 are improved. In addition, the free end of the second catheter central part is also connected with a Y valve, and the arrangement of the Y valve can facilitate the handle to switch the therapeutic equipment or realize suction and flushing, thereby simplifying the operation difficulty in the operation; meanwhile, due to the structural design of the branching holes, the risk of intertwining when a plurality of traction ropes turn is avoided.

It should be understood by those skilled in the art that the endoscope has other structures besides the first catheter hub, but since the difference between the present embodiment and the prior art is mainly that the first catheter hub is structured, the other structures in the endoscope are not described in detail, and the positions and connection relationships of the structures can be referred to any embodiment in the prior art.

Example 2

The present embodiment provides an endoscope, and the present embodiment 2 can be regarded as being further improved on the basis of the structure of the above embodiment 1, and the technical features already included in the above embodiment 1 are naturally inherited in the present embodiment and are not described again.

Referring to fig. 1 to 5, in a preferred embodiment, a first catheter hub 400 and a second catheter hub 500 are provided inside an endoscope, the first catheter hub 400 includes a first working channel 410 and a first working channel 420, a liquid injection port 411 is provided on the first working channel 410, the second catheter hub 500 includes a second working channel 510 and a second working channel 520, further, one end of the second working channel 510 is connected with the first working channel 420, the two working channels are clamped and adhered, the second working channel 520 is connected with a gas-liquid catheter 800, a valve 810 is provided at the free end of the gas-liquid catheter 800, the valve 810 penetrates through the outer surface of the endoscope, and the other end of the second working channel 510 is connected with a Y valve 700; y valve 700 includes a main circuit 710 and a branch circuit 720.

In this embodiment, when the endoscope is used, when the valve 810 at the free end of the gas-liquid conduit 800 is opened, liquid or gas can be injected into the second working branch 520 through the valve 810, and the second working branch 520 is connected to the working channel in the conduit 600 through the first working branch 420, so as to flush the lesion.

In this embodiment, when the valve 810 at the free end of the gas-liquid conduit 800 is closed, the main path 710 of the Y valve 700 is opened, and a therapeutic instrument can be sequentially inputted to the second working path 510, the first working path 410, and the working channel of the conduit 600 through the main path 710; when the main path of the Y valve 700 is closed and the branch path 720 of the Y valve 700 is opened, water can be injected into the second working path 510, the first working path 410 and the working channel of the guide tube 600 in sequence through the branch path 720 or suction of negative pressure can be achieved.

It should be noted that, although the structure disclosed in this embodiment is modified based on the structure of embodiment 1, those skilled in the art should appreciate that the structure provided in this embodiment may also be implemented independently, and is not necessarily dependent on embodiment 1.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims

1. An endoscope comprising a catheter and a first catheter hub;

at least part of the conduit is penetrated in the first working main path;

2. An endoscope as in claim 1 wherein,

the second catheter hub is Y-shaped and comprises a second working main path and a second working branch path; one end of the second working main path is clamped with the second catheter hub and fixed by adhesion.

3. The endoscope of claim 2, further comprising a Y valve and a gas-liquid conduit,

the other end of the second working main path is connected with a Y valve;

the second working branch is connected with the gas-liquid conduit.

4. An endoscope as in claim 3 wherein,

the Y valve comprises a main path and a branch path; the main path of the Y valve can be opened or closed, when the main path of the Y valve is opened, a therapeutic apparatus can be accessed through the main path of the Y valve, and when the main path of the Y valve is closed, flushing or negative pressure suction can be performed through the branch path of the Y valve.

5. An endoscope as in claim 1 wherein,

the top end of the first catheter hub is provided with a plurality of semicircular branching holes.

6. An endoscope as in claim 5 wherein,

and three branching holes are formed.

7. The endoscope of claim 6, further comprising a pull cord,

at least part of the traction rope is axially arranged in the catheter, and the traction rope penetrates through the branching hole.

8. An endoscope as in claim 7 wherein,

four traction ropes are arranged, and each branching hole comprises a large branching hole and two small branching holes; wherein two haulage ropes respectively pass two little separated time holes correspondingly, and two other haulage ropes pass a big separated time hole.