CN220675962U

CN220675962U - Biliary pancreas tube mirror

Info

Publication number: CN220675962U
Application number: CN202321783935.2U
Authority: CN
Inventors: 郑明友; 郑言
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-09
Filing date: 2023-07-09
Publication date: 2024-03-29
Anticipated expiration: 2033-07-09

Abstract

The utility model discloses a biliary pancreatic ductoscope, which comprises an insertion part, a first lens, a second lens, a third lens and a fourth lens, wherein the insertion part comprises an imaging catheter for observing imaging and providing a passage for a therapeutic instrument and the like to pass through; the operation part comprises an operation part main body for extending the imaging catheter, an angle adjusting knob for adjusting the angle of the imaging catheter, a travel adjusting part for controlling the advancing or retreating of the imaging catheter, a first interface for flushing and sucking and a second interface for passing a therapeutic instrument, a guide wire and the like; the operating part main body is internally provided with a third cavity channel for power supply and image transmission line access and a fourth cavity channel communicated with the first interface and the second interface. The choledochoscope is fixedly connected with the forceps pipeline interface of the duodenum scope through the end cap part of the operation part. The utility model has the advantages of ingenious structural design and convenient operation, avoids bending and exposing the imaging catheter segments outside the duodenum endoscope, reduces the operation difficulty, ensures that the operation of the biliary-pancreatic tube mirror is easier to get on hand, and is beneficial to popularization of the biliary-pancreatic tube mirror.

Description

Biliary pancreas tube mirror

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a biliary pancreas tube mirror.

Background

The choledochopancreatic tube direct vision sub-mirror system of the forceps pipeline system of the duodenum endoscope is gradually accepted by the market, and researches prove that the occurrence rate of complications of the choledochopancreatic tube mirror system is not increased compared with ERCP, and the safety of the choledochopancreatic tube mirror system is further proved. Compared with the traditional ERCP operation, the biliary-pancreatic ductoscope system can observe pathological changes, stones and the like in the biliary-pancreatic duct through the camera of the system, thereby greatly improving the accuracy of diagnosis and treatment of the biliary-pancreatic duct diseases. When the cholangiopancreatography system is clinically used, surgical instruments can be matched with the working cavity of the cholangiopancreatography system to perform surgical treatment.

After the traditional biliary-pancreatic tube endoscope is connected with the duodenal endoscope, a section of imaging catheter is bent and exposed outside the duodenal endoscope, and the imaging catheter is advanced completely by manual pushing of a doctor, so that the operation difficulty is high, the accuracy is difficult to control, and more clinical experience is required; meanwhile, the diameter of the second cavity in the imaging catheter is small, the design is complex, the design and production difficulty of fittings for the design, production and treatment of the biliary pancreas lens are increased, and the popularization of the biliary pancreas tube lens is affected.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a choledochopancreatic tube mirror which reduces the design, production and clinical operation difficulties of a choledochopancreatic mirror.

For this purpose, the utility model adopts the following specific technical scheme:

a biliary-pancreatic tube mirror, which comprises,

an insertion section including an imaging catheter for visualizing imaging and providing a passage for a therapeutic instrument or the like to pass through;

the operation part comprises an operation part main body for extending the imaging catheter, an angle adjusting knob for adjusting the angle of the imaging catheter, a travel adjusting part for controlling the advancing or retreating of the imaging catheter, a first interface for flushing and sucking and a second interface for passing a therapeutic instrument, a guide wire and the like;

the operating part main body is internally provided with a third cavity channel for power supply and image transmission line access and a fourth cavity channel communicated with the first interface and the second interface.

In one possible design, the stroke adjusting part comprises a core rod for the imaging catheter to pass through, and a positioning lock which can slide along the core rod with a scale to adjust the stroke of the imaging catheter and can be locked; the imaging catheter and the operating part main body are fixed with a positioning lock, and the positioning lock is provided with a lock tongue which can extend or retract.

In one possible design, the lock tongue is in threaded connection with the positioning lock, and the outer end of the lock tongue is provided with a driving knob for screwing.

In a possible design, the stroke adjusting portion further includes an end cap portion fixed to one end of the core bar away from the main body of the operating portion, a luer connector is disposed at one end of the end cap portion away from the core bar, and the rotating end cap portion can fix the choledochoscope inserted into the duodenal forceps tube to the connector of the forceps tube of the duodenal forceps tube.

In one possible design, the maximum adjustable stroke of the stroke adjusting part is 15cm, and the length of the cholangioscope entering the bile duct or the pancreatic duct can be known through the core bar with the staff gauge, and meanwhile, the medical staff can be accurately informed of the pathological change position in the bile duct or the pancreatic duct.

In one possible design, the side surface of the core rod is convexly provided with a plurality of lock teeth which can be matched with the lock tongue and a guide groove for preventing the core rod from twisting, and the positioning lock is provided with a torsion preventing protrusion which is blocked into the guide groove.

In one possible design, an imaging catheter includes a tube body and a biliopancreatic tube scope tip including a first lumen and a second lumen; the first cavity is used for containing the camera module, the distal end of the first cavity penetrates through the distal end of the end socket, the second cavity is used for enabling a therapeutic instrument to penetrate through and/or be used for guiding a guide wire and/or be used for sucking and flushing, the distal end of the second cavity penetrates through the distal end of the end socket, the distal end of the tube body is connected with the proximal end of the end socket, the distal end of the third cavity is communicated with the proximal end of the first cavity, and the distal end of the fourth cavity is communicated with the proximal end of the second cavity.

In one possible design, the distal end face of the biliopancreatic tube mirror head is provided with a first planar region and a second planar region, the second planar region smoothly transitions from a lower edge of the first planar region toward a direction approaching a proximal end of the head, a distal end of the first lumen extends through the first planar region, and a distal end of the second lumen extends through the second planar region to form an instrument opening.

In one possible design, the imaging catheter further includes a camera module and a wire, the camera module is located in the first cavity, the wire is threaded through the third cavity and the first cavity, and a distal end of the wire is connected with the camera module.

In one possible design, the camera module includes one or two illumination lamps spaced apart from each other, and the distal end face of the camera module is coplanar with the first planar area.

Compared with the prior art, the utility model has the beneficial effects that:

1. the semi-automatic degree of imaging catheter control is realized through the arrangement of the stroke adjusting part, the extension or withdrawal action of the imaging catheter is conveniently realized, the operation precision is greatly improved compared with the prior art, and the operation safety is also ensured.

2. The utility model avoids bending and exposing the imaging catheter segments outside the duodenum endoscope, reduces the operation difficulty, ensures that the operation of the biliary-pancreatic tube endoscope is easier to be carried out, and is beneficial to the popularization of the biliary-pancreatic tube endoscope.

3. The whole operation part can fix the biliary pancreas scope inserted into the duodenal forceps pipeline on the interface of the forceps pipeline of the duodenal endoscope by rotating the end cap part, replaces the existing fixing modes such as binding bands, and is firm in fixing and convenient to operate.

4. When the insertion part of the biliary pancreas scope slides in the core bar through the stroke part, the length of the biliary pancreas scope entering the bile duct or the pancreatic duct can be known through the core bar with the staff gauge, and meanwhile, the pathological change position in the bile duct or the pancreatic duct can be accurately told to medical staff.

Drawings

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

FIG. 1 shows a schematic diagram of a biliopancreatic tube mirror structure of the utility model;

FIG. 2 shows a schematic diagram of the structure of the tip of the present utility model;

FIG. 3 shows a schematic structural view of a tube body in an imaging catheter of the present utility model;

FIG. 4 is a front view of the distal end of FIG. 2;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 shows a schematic view of the imaging catheter configuration of the present utility model;

FIG. 8 shows a schematic top view of the operator of the present utility model;

fig. 9 shows a schematic cross-sectional view of a core rod in accordance with the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected 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.

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

Reference numerals illustrate: imaging catheter 1, tip 100, bend 101, tube 102, illuminator 2, camera module 3, second lumen 4, second planar region 5, first planar region 6, angle adjustment knob 11, angle adjustment knob latch 111, second interface 12, waterproof cap 121, first interface 13, remote control button 14, end cap 15, core bar 16, lock teeth 161, positioning lock 17, anti-torsion protrusion 171, power and image transmission line 18, three-way valve 19, and operation section 20.

Referring to fig. 1-9, the present embodiment provides a medical device, comprising,

an insertion portion including an imaging catheter for visualizing the image and providing a passage for a therapeutic instrument therethrough;

The second interface can be provided with a three-way valve so as to be convenient for accessing corresponding flushing and sucking instruments; the first interface may be configured with a waterproof cap, and may be specifically made of rubber.

As shown in fig. 1, the stroke adjusting part comprises a core bar for the imaging catheter to pass through, and a positioning lock which can slide along the core bar to adjust the stroke of the imaging catheter and can be locked; the imaging catheter and the operating part main body are fixed with a positioning lock, and the positioning lock is provided with a lock tongue which can extend or retract; the operating part and the positioning lock can slide on the core bar so as to drive the imaging catheter to advance or retreat, and the surface of the core bar can be provided with scale marks, so that the specific stroke of the imaging catheter can be clearly controlled; the imaging catheter extends into the observing part or the treating part, and the imaging catheter can be locked and positioned by the positioning lock when reaching the designated position.

As shown in fig. 1, the lock tongue is in threaded connection with the positioning lock, and a driving knob which can be screwed is arranged at the outer end of the lock tongue.

As shown in fig. 1, the stroke adjusting part further comprises an end cap part fixed at one end of the core bar far away from the main body of the operating part, a luer connector is arranged at one end of the end cap part far away from the core bar, and the end cap part and the core bar are movably clamped, namely the end cap part and the core bar can rotate and can not move relatively; the rotary end cap part can fix the core rod, the end cap part and the whole operation part on the forceps pipeline interface of the duodenum endoscope through the luer connector, replaces the existing fixing modes such as the binding belt and the like, is firm in fixation and convenient to operate; the end cap part is convenient for an operator to hold, and is further arranged on a forceps pipeline interface of the duodenum endoscope or used for adjusting the stroke of an imaging catheter; preferably, the main body of the operation part is made of light polymer materials, the luer connector is made of medical metal parts and alloy parts such as steel or titanium alloy, and the structural strength and the connection strength are improved. When the imaging catheter is used, an operator fixes the core rod, the end cap part and the whole operation part on a forceps pipeline interface of the duodenal endoscope by using the luer connector, the imaging catheter is also inserted into the forceps pipeline system of the duodenal endoscope in advance, at the moment, the end cap and the core rod are fixed with the duodenal endoscope, then the positioning lock is unlocked, the operation part is pushed to slide along the core rod to drive the imaging catheter to extend into the observation part or the treatment part, and when the imaging catheter reaches a designated position, the imaging catheter can be locked and positioned by the positioning lock.

As shown in figure 1, the maximum adjustable stroke of the stroke adjusting part is 15cm, other lengths can be selected, the adjustable stroke of the stroke adjusting part of 15cm generally meets the use requirement, and when the inserting part of the choledochoscope slides in the core bar through the stroke part, the length of the choledochoscope entering the bile duct or the pancreatic duct can be known through the core bar with the staff gauge, and meanwhile, the pathological change position in the bile duct or the pancreatic duct can be accurately told to medical staff.

As shown in fig. 9, the side surface of the core rod with the scale is convexly provided with a plurality of lock teeth capable of being matched with the lock tongue and guide grooves capable of preventing the core rod from twisting, the positioning lock is provided with anti-twisting protrusions clamped into the guide grooves, the matching of the anti-twisting protrusions and the guide grooves can also improve the sliding stability, preferably, the guide grooves can be arranged two along opposite angles, and the anti-twisting protrusions are correspondingly arranged two.

The imaging catheter is an insertion part, and comprises a tube body, a bending part, an end head and a connecting steel wire system for controlling the far end to rotate in the left-right direction, the up-down direction and the four directions, wherein steel wires are embedded in the inner walls of the tube body and the end head, the end head is provided with a second cavity, the second cavity extends to penetrate through the whole tube body to form a working cavity, and an opening, namely an instrument opening, is formed at the far end of the working cavity. The staff operates the proximal end of the therapeutic apparatus so that the therapeutic apparatus passes through the working channel and reaches a preset position, the distal end of the tube body is connected with the proximal end of the tip, the distal end of the third channel is communicated with the proximal end of the first channel, and the distal end of the fourth channel is communicated with the proximal end of the second channel.

The medical device further includes a treatment instrument, and the worker manipulates the proximal end of the treatment instrument such that the treatment instrument passes through the working channel and reaches a preset position. The semi-automatic degree of imaging catheter control is realized through the arrangement of the stroke adjusting part, the extension or withdrawal action of the imaging catheter is conveniently realized, the operation precision is greatly improved compared with the prior art, and the operation safety is also ensured. The utility model avoids bending and exposing the imaging catheter in sections outside the duodenum endoscope, improves the semi-automatic degree of control of the imaging catheter, reduces the operation difficulty, ensures that the operation of the biliopancreatic tube mirror is easier to be carried out, and is beneficial to popularization of the biliopancreatic tube mirror.

In this embodiment, the therapeutic apparatus may be: the sampling forceps, the basket, the snare and the like, the working cavity can also be used as a channel during flushing and suction, and workers can carry out corresponding operation treatment by means of different treatment instruments.

The end head can be made of metal material or polymer material. The end head can be machined by a machining mode, and can also be molded by an injection molding or powder metallurgy method.

Referring to fig. 3-7, in the present embodiment, the imaging catheter further includes a camera module and a wire, the tip further includes a first cavity, and the first cavity extends through the entire tube body to form a camera cavity; the first cavity and the second cavity are mutually independent. Specifically, the camera module is installed in the first cavity and is located at the far end of the first cavity. The wire is worn to locate in the chamber way of making a video recording, and the distal end and the module of making a video recording of wire are connected.

In this embodiment, the medical apparatus further includes an operation portion assembly, the proximal end of the wire is connected to a corresponding portion of the operation portion, and a worker can control the working states of the camera module and the end of the biliopancreatic tube mirror in a left-right and up-down angle steering through the operation portion angle knob assembly.

It is noted that the proximal and distal ends referred to herein are with reference to the worker using the device, and that the end relatively closer to the worker is the proximal end and the end relatively farther from the worker is the distal end during use. For example: with the relative positions in fig. 2, the left end of the tube is the proximal end, the right end of the tube is the distal end, the left end of the tip is the proximal end, and the right end of the tip is the distal end.

It can be understood that in this embodiment, the worker can observe the pathological changes and stones in the biliary tract and pancreatic duct by means of the camera module.

It should be noted that, in this embodiment, the camera module and the lighting device share the same cavity, that is, the lighting device is further installed in the first cavity, and the lighting device is used for improving brightness of surrounding environment, so that direct-view observation and image acquisition are facilitated.

Referring to fig. 6 and 7, in the present embodiment, the distal end face of the tip has a first planar region and a second planar region, and the second planar region smoothly transitions from the lower edge of the first planar region toward the proximal end of the tip. That is, the first planar region is located at the distal-most end of the tip.

In this embodiment, the distal end of the first cavity extends through the first plane area, and it can be understood that the camera module is located inside the first cavity, and the lens of the camera module is located in the first plane area and can observe specific conditions of the external biliary tract and pancreatic duct.

It can be appreciated that in this embodiment, the first planar area is located at the most distal end of the tip, so that the second planar area does not obstruct the view angle of the camera module, so that the view angle of the camera module can be effectively increased, and a larger range of images can be acquired.

It should be noted that, in the actual use process, if the image capturing module extends out of the first plane area, the image capturing module will contact with tissues such as biliary tract, pancreatic duct, and the like, which may cause damage to the biliary tract, pancreatic duct, and the like. Referring to fig. 3, 5 and 6, in the present embodiment, the distal end face of the camera module is coplanar with the first plane area. Therefore, on the premise that the camera module does not extend out of the first plane area, the camera module can acquire the maximum view angle.

In this embodiment, the second planar area and the first planar area are in smooth transition, so that the resistance of the tip in the process of entering the biliary tract is reduced, and the tip can more smoothly enter the biliary tract, the pancreatic duct and the like.

Referring to fig. 3-6, in this embodiment, the distal end of the second channel extends through the second planar region to form an instrument opening, and it is understood that the instrument opening is near the proximal end of the tip relative to the distal end of the first channel, and the therapeutic instrument in the second channel can pass out of the instrument opening, while the second channel can also serve as a guide channel; specifically, in the practical process, the guide wire can be firstly arranged on the preset path and then passes through the instrument opening, so that the guide wire is arranged in the guide cavity. Like this, under the guiding effect of guide wire, body and end can follow the extending direction removal of guide wire, can reduce the probability that end and body touch other tissues effectively for end and body can reach the target position more smoothly, thereby improve work efficiency effectively.

In this embodiment, the outer contour of the instrument opening is elliptical, the line connecting the centers of the first and second lumens is a reference line extending radially of the tip.

Referring to fig. 2-4, in this embodiment, the second lumen of the tip, and correspondingly, the second lumen, also extends through the entire tube, with the distal end of the second lumen extending through the second planar region to form the instrument opening. The second channel may also serve as a flushing and aspiration channel.

In this embodiment, the liquid is ejected from the instrument opening through the second lumen, and the liquid can not only clean the surrounding biliary tract tissue, but also clean the distal end face of the imaging module. In this embodiment, since the distal end face of the camera module is coplanar with the first plane area, it is also advantageous to liquid clean the distal end face of the camera module.

In summary, the second channel and the instrument opening on the end head of the utility model are integrated channels and openings, which can be suitable for the passage of therapeutic instruments (including but not limited to sampling forceps, basket, snare, suction, flushing and the like), and can also be used for guiding a guide wire, so that the end head can move along the extending direction of the guide wire, the probability of the end head touching other objects is reduced, the end head can reach the target position more smoothly, the working efficiency is improved, the structure on the end head is simplified, and the diameter of the second channel is larger, so that various therapeutic instruments can be used for developing work more easily. The second plane area is smoothly transited from the lower edge of the first plane area to the direction close to the proximal end of the tip, that is, the first plane area is positioned at the farthest end of the tip, the distal end of the first cavity passes through the plane area, the instrument opening is also positioned at the farthest end of the tip, and the camera module is positioned in the first cavity, so that the second plane area does not cause obstruction to the view angle of the camera module positioned in the first cavity, and the view angle of the camera module can be effectively increased. And, because the smooth transition between second plane region and the first plane region for the end receives less resistance in the in-process of entering biliary tract, can make the end get into biliary tract's process more smooth and easy. The utility model can obviously reduce the design and production difficulty of the equipment and the production difficulty of therapeutic accessories, reduce the production cost and improve the clinical diagnosis and treatment efficiency.

Claims

1. A cholangiopancreatic tube mirror is characterized by comprising,

the operating part main body is internally provided with a third cavity channel for the power supply and the image transmission line to be connected and a fourth cavity channel communicated with the first interface and the second interface.

2. The cholangiopancreatography tube mirror according to claim 1, wherein the travel adjusting part comprises a core rod through which the imaging catheter passes, and a positioning lock which can slide along the core rod with a scale to adjust the travel of the imaging catheter and can be locked; the imaging catheter and the operating part main body are fixed with a positioning lock, and the positioning lock is provided with a lock tongue which can extend or retract.

3. The cholangiopancreatography tube mirror according to claim 2, wherein the lock tongue is in threaded connection with the positioning lock, and a driving knob which can be screwed is arranged at the outer end of the lock tongue.

4. The choledochoscope according to claim 2 or 3, wherein the stroke adjusting portion further comprises an end cap portion movably fixed to an end of the core bar away from the main body of the operation portion, a luer connector is provided at an end of the end cap portion away from the core bar, and the choledochoscope inserted into the duodenal forceps tube is fixed to an interface of the forceps tube of the duodenal forceps by rotating the end cap portion.

5. The cholangiopancreatography tube mirror according to claim 4, wherein the maximum adjustable stroke of the stroke adjusting part is 15cm.

6. The cholangiopancreatography tube mirror according to claim 4, wherein the side surface of the core rod is convexly provided with a plurality of locking teeth which can be matched with the lock tongue and a guide groove for preventing the core rod from twisting, and the positioning lock is provided with a torsion preventing protrusion which is clamped into the guide groove.

7. The cholangiopancreatic tube scope of any of claims 1-3 or 6 wherein the imaging catheter comprises a tube body and a cholangiopancreatic tube scope tip, the cholangiopancreatic tube scope tip comprising a first lumen channel, a second lumen channel; the first cavity is used for containing the camera module, and the distal end of the first cavity runs through the distal end of the end socket, the second cavity is used for a therapeutic instrument to pass through and/or is used for guiding a guide wire and/or is used for sucking and flushing, and the distal end of the second cavity runs through the distal end of the end socket, the distal end of the tube body is connected with the proximal end of the end socket, and the distal end of the third cavity is communicated with the proximal end of the first cavity, and the distal end of the fourth cavity is communicated with the proximal end of the second cavity.

8. The cholangiopancreatography of claim 7 wherein the distal end face of the cholangiopancreatography tip is provided with a first planar region and a second planar region, the second planar region smoothly transitions from a lower edge of the first planar region towards a direction approaching a proximal end of the tip, a distal end of the first lumen extends through the first planar region, and a distal end of the second lumen extends through the second planar region to form an instrument opening.

9. The cholangiopancreatography tube mirror of claim 8 wherein the imaging catheter further comprises a camera module and a wire, the camera module is located in the first cavity, the wire is threaded through the third cavity and the first cavity, and a distal end of the wire is connected with the camera module.

10. The cholangiopancreatography tube mirror according to claim 9, wherein the imaging module comprises one or two illumination lamps which are distributed at intervals, and a distal end face of the imaging module is coplanar with the first plane area.