CN219501790U

CN219501790U - Biliary tract treatment tube

Info

Publication number: CN219501790U
Application number: CN202320337968.8U
Authority: CN
Inventors: 金大庆
Original assignee: Digestive Diagnosis And Treatment Technology Beijing Engineering Research Center Co ltd
Current assignee: Digestive Diagnosis And Treatment Technology Beijing Engineering Research Center Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-11
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a biliary tract treatment tube, which relates to the field of medical appliances and comprises: the device comprises a main pipe body and a guide pipe, wherein one end of the guide pipe is slidably arranged in the main pipe body, the other end of the guide pipe is arranged towards the inside of a biliary tract, the outer diameter of the guide pipe gradually decreases along the direction of the guide pipe, the inner diameter of a port at one end of the guide pipe away from the main pipe body is matched with the outer diameter of a biliary tract built-in guide wire, one end of the guide pipe close to the main pipe body is connected with a push-pull piece, and the push-pull piece extends out of the end of the main pipe body away from the guide pipe; according to the utility model, the guide pipe is used as the front end of the main pipe body to extend into the biliary tract, the functions of leading guide and expanding diameter are realized for the installation of the main pipe body, the expanding diameter and the installation of the main pipe body are completed in the same step, the installation efficiency of the main pipe body is greatly improved, the overall operation efficiency is further improved, and the guide pipe can be pulled out from the main pipe body by pulling the push-pull piece after the main pipe body is installed in place, so that the subsequent operation work is not influenced.

Description

Biliary tract treatment tube

Technical Field

The utility model relates to the field of medical equipment, in particular to a biliary tract treatment tube.

Background

In the process of taking out a gallstone basket, performing endoscopic examination or biliary drainage, a treatment tube is needed to be arranged in a biliary tract, the inside of the biliary tract is communicated with the outside, the biliary tract drainage is taken as an example, firstly, conventional ERCP is carried out, the nature, the position, the range and the like of biliary tract lesions are known, the position of the drainage of the inner tube is determined, secondly, a guide wire is inserted through a radiography catheter, the guide wire exceeds an obstruction section, the biliary tract is needed to enter into a biliary tract required to be drained, then a person with serious biliary tract stenosis needs to expand the biliary tract, a proper expansion catheter is selected to circulate the guide wire to be sent into the biliary tract, the maximum diameter of the expansion tube is determined to pass through the narrow position under the perspective, the inner tube is left for 3-5min, finally, the inner tube and a corresponding conveyer are inserted along the guide wire, the inner tube (the inner tube is the treatment tube required by the subsequent operation) is gradually sent into the biliary tract under the perspective, and the inner tube below a tail end barb is left in the duodenal cavity, finally, the inner liner tube and the pushing tube is sequentially pulled out, the method needs to expand the biliary tract, the subsequent operation is guaranteed, the operation steps are complicated, the overall operation efficiency is prolonged, and the time is low.

Therefore, there is a need for a biliary tract therapy tube with high installation efficiency, thereby improving the operation efficiency.

Disclosure of Invention

The utility model aims to provide a biliary tract treatment tube, which solves the problems in the prior art, and provides the prepositive guiding and expanding functions for the installation of a main tube body by arranging a guiding tube, and the expanding and the installation of the main tube body are completed in the same step, so that the installation efficiency of the main tube body is greatly improved, and the overall operation efficiency is further improved.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a biliary tract treatment tube, which comprises a main tube body and a guide tube, wherein the main tube body is used for being detained in a biliary tract, one end of the guide tube is slidably arranged in the main tube body, the other end of the guide tube is arranged towards the biliary tract, the inner diameter of a port at one end of the guide tube, which is far away from the main tube body, is matched with the outer diameter of a biliary tract built-in guide wire, one end of the guide tube, which is close to the main tube body, is connected with a push-pull piece, and the push-pull piece extends out of the end of the main tube body, which is far away from the guide tube.

Preferably, the outer diameter of the end of the main tube body near the inside of the biliary tract is gradually reduced.

Preferably, the portion of the push-pull member located outside the main pipe body is provided with a baffle plate that prevents the push-pull member from sliding into the main pipe body.

Preferably, the guide tube extends to form the push-pull member near one end of the main tube body.

Preferably, a sliding gap ensuring that the inner wall of the main pipe body and the outer wall of the guide pipe can slide relatively is arranged between the inner wall of the main pipe body and the outer wall of the guide pipe.

Preferably, the sliding gap is 0.2mm.

Preferably, the main tube body is provided with a liquid injection port at one end far away from the inside of the biliary tract.

Preferably, the main tube body and the guide tube are both made of medical silica gel.

Compared with the prior art, the utility model has the following technical effects:

1. according to the utility model, the guide pipe is used as the front end of the main pipe body to extend into the biliary tract, the effect of leading guide and expanding the diameter is realized for the installation of the main pipe body, the expanding and the installation of the main pipe body are completed in the same step, the expansion of the biliary tract by using the expanding pipe before the installation of the main pipe body is not needed, the installation efficiency of the main pipe body is greatly improved, the overall operation efficiency is further improved, and the guide pipe can be pulled out from the main pipe body by pulling the push-pull piece after the main pipe body is installed in place, so that the subsequent operation work is not influenced.

2. The outer diameter of one end of the main pipe body close to the biliary tract is gradually reduced, and the guiding and expanding functions are added to the front end of the main pipe body, so that the installation convenience of the main pipe body is improved.

3. The baffle plate is utilized in the utility model to prevent the sliding piece from sliding into the main pipe body in the process of inserting the guide pipe and the main pipe body, so that the problem that the guide pipe is difficult to pull out through the sliding piece in the follow-up process is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, 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 a biliary tract treatment tube according to the present utility model;

wherein, 1, a main pipe body; 2. a guide tube; 3. a wire; 4. a baffle; 5. and a liquid injection port.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1, a biliary tract treatment tube is provided, including a main tube 1 and a guide tube 2 for indwelling in the biliary tract, one end of the guide tube 2 is slidably disposed in the main tube 1, that is, the outer diameter of the end of the guide tube 2 is slightly smaller than the inner diameter of the main tube 1, the other end is disposed toward the biliary tract, and the outer diameter thereof decreases gradually, the gradually decreasing manner may be a conical structure with continuously decreasing outer diameter, or an indirect decreasing manner, that is, a cylindrical staggered structure with a section of conical shape, in order to improve guiding and expanding effects, no matter whether the structure with continuously decreasing outer diameter or the structure with indirectly decreasing outer diameter is selected, the end wall thickness of the end of the guide tube 2 away from the main tube 1 is zero, the inner diameter of the end of the guide tube 2 away from the main tube 1 is matched with the outer diameter of the biliary tract inner guide wire 3, the end of the guide tube 2 is connected with a push-pull member, the push-pull member extends to the end of the main tube 2 away from the main tube 1, the front end of the guide tube 2 is used as the main tube 1, the guide tube 2 is extended into the biliary tract, the guide tube 1 is separately installed in the main tube 1, the main tube 1 is not required to be installed in the same place, and the main tube 1 is not required to be expanded, and the main tube 1 is installed in the main tube 1 is not required to be installed in the main tube 1, and the main tube is further required to be installed in the main tube 1.

The outer diameter of one end of the main pipe body 1 close to the biliary tract is gradually reduced, the guiding and expanding functions are added to the front end of the main pipe body 1, and the installation convenience of the main pipe body 1 is improved.

The wall thickness of the main tube body 1 near the end port in the biliary tract can be set to be zero, the existence of the surface perpendicular to the biliary tract is eliminated, and the damage to the biliary tract in the insertion process is avoided.

The part of the push-pull member located outside the main tube body 1 is provided with a baffle 4 for preventing the push-pull member from sliding into the main tube body 1, and the baffle 4 is used for preventing the push-pull member from sliding into the main tube body 1 during the insertion process of the guide tube 2 and the main tube body 1, so that the problem that the guide tube 2 is difficult to pull out through the push-pull member later is avoided.

The end of the guiding tube 2 near the main tube body 1 extends to form a push-pull piece, and the baffle 4 can be a bulge or an annular flange formed by the radial extension of the guiding tube 2 body; of course, other rod structures can be used as the push-pull member, and when the push-pull member is a rod structure, the baffle 4 is a protrusion integrally arranged with the rod structure.

A sliding gap which ensures that the inner wall of the main pipe body 1 and the outer wall of the guide pipe 2 can slide relatively is arranged between the inner wall and the outer wall.

The sliding clearance is 0.2mm, for example, when the outer diameter of the main pipe body 1 is 2.2mm and the inner diameter is 1.8mm, the outer diameter of the guide pipe 2 is 1.6mm; the outer diameter of the main pipe body 1 is 2.6mm, and when the inner diameter is 2.2mm, the outer diameter of the guide pipe 2 is 2.0mm; when the outer diameter of the main tube body 1 is 3.0mm and the inner diameter is 2.6mm, the outer diameter of the guide tube 2 is 2.4mm, and the inner diameter of the guide tube 2 ensures that the guide wire 3 can pass through the guide tube.

The end of the main tube body 1, which is far from the inside of the biliary tract, is provided with a liquid injection port 5 for injecting the corresponding liquid into the biliary tract during the operation.

The main pipe body 1 and the guide pipe 2 are made of medical silica gel or other materials as required.

In the actual use process, under the condition that the guide wire 3 is arranged in the biliary tract, one end of the guide wire 3 positioned outside the body passes through the port of the guide tube 2 and passes out of one end of the main tube body 1 far away from the guide tube 2, at the moment, the guide tube 2 and the main tube body 1 are controlled to enter the biliary tract along the guide wire 3, after the main tube body 1 reaches a designated position, the guide tube 2 is pulled out by utilizing the push-pull piece, namely, the installation of the main tube body 1 is completed, and a channel between the biliary tract and the outside is established.

The adaptation to the actual need is within the scope of the utility model.

It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims

1. The utility model provides a biliary tract treatment pipe, its characterized in that, is including being used for keeping somewhere the main body and the guide tube in the biliary tract, the one end slidable of guide tube sets up in the main body, the other end sets up towards the biliary tract in, and along its external diameter taper up, the guide tube keep away from the port internal diameter of the one end of main body and the external diameter phase-match of biliary tract built-in seal wire, the guide tube is close to the one end of main body is connected with the push-and-pull piece, the push-and-pull piece extends to the main body is kept away from outside the tip of guide tube.

2. The biliary tract therapy tube according to claim 1, wherein an outer diameter of an end of the main tube body adjacent to the inside of the biliary tract is gradually reduced.

3. The biliary tract therapy tube according to claim 1, wherein a portion of the push-pull member located outside the main tube body is provided with a baffle preventing the push-pull member from sliding into the main tube body.

4. A biliary tract therapy tube according to claim 3 wherein the guide tube extends adjacent one end of the main tube body to form the push-pull member.

5. The biliary tract treatment tube according to claim 1, wherein a sliding gap ensuring relative sliding of the inner wall of the main tube body and the outer wall of the guide tube is provided therebetween.

6. The biliary tract therapy tube according to claim 5, wherein the sliding gap is 0.2mm.

7. The biliary tract therapy tube according to claim 1, wherein an end of the main tube body remote from the biliary tract interior is provided with a liquid injection port.

8. The biliary tract therapy tube according to claim 1, wherein the main tube and the guide tube are both made of medical silica gel.