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Biliary duct jejunum anastomotic scaffold

A cholangiojejunostomy, tubular technology, applied in the field of biliary and jejunostomy stents, can solve the problems of high cost, time-consuming and small scope of application of cholangiojejunostomy, and achieve the goal of avoiding scar hyperplasia, improving long-term curative effect and avoiding direct effects Effect

Active Publication Date: 2007-05-23
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the time-consuming and difficult manual suturing method in performing bile duct and jejunum anastomosis in the prior art, the high cost and small scope of application of the stapler method in performing bile duct and jejunum anastomosis, and the shortcomings that the above-mentioned two-fold method is easy to cause complications, The invention provides a biliary-jejunum anastomosis bracket, which is easy to operate, low in cost, wide in application range and capable of avoiding various complications when performing bile duct and jejunum

Method used

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  • Biliary duct jejunum anastomotic scaffold

Examples

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Effect test

Embodiment 1

[0020] With reference to Fig. 1, a kind of biliary-intestinal anastomosis stent comprises the tubular body 1 that is made by human body absorbable material polyglycolic acid (PGA), has the first convex ring 2, the second convex ring 3 on the tubular body 1, the first, the second convex ring 3. The second protruding rings are circular rings that are symmetrical to the axis of the tubular body, and the second protruding rings 3 are located at the end of the tubular main body 1 . The tubular body 1 has a tubular body extension 4 at the end of the first collar away from the second collar 3 . The side wall of the first protruding ring 2 forms an obtuse angle of 135° with the tubular main body 1 , and the side wall of the second protruding ring 3 forms an obtuse angle of 115° with the tubular main body 1 . The radial cross-section of the first protruding ring 2 in the tubular body part is triangular, and the radial cross-section of the second protruding ring 3 in the tubular main pa...

Embodiment 2

[0023] A biliary-intestinal anastomosis bracket, comprising a tubular body made of hydroxyapatite, the tubular body has a first protruding ring and a second protruding ring, and the first and second protruding rings are centered on the axis of the tubular main body A symmetrical circular ring with a second raised ring at the end of the tubular body. The tubular body has a tubular body extension at an end at the first collar remote from the second collar. The side wall of the first protruding ring forms an obtuse angle of 130° with the tubular main body, and the side wall of the second protruding ring forms an obtuse angle of 110° with the tubular main body. The first protruding ring has a triangular cross-section in the radial direction of the tubular main body, and the second protruding ring has a trapezoidal cross-section in the radial direction of the tubular main body. The size of the bracket is as follows: the wall thickness of the tubular main body and the extension sec...

Embodiment 3

[0025] A biliary-intestinal anastomosis bracket, comprising a tubular body made of cellulose, the tubular body has a first protruding ring and a second protruding ring, and the first and second protruding rings are center-symmetrical to the axis of the tubular main body A circular ring, a second raised ring is located at the end of the tubular body. The tubular body has a tubular body extension at an end at the first collar remote from the second collar. The side wall of the first protruding ring forms an obtuse angle of 150° with the tubular main body, and the side wall of the second protruding ring forms an obtuse angle of 120° with the tubular main body. The first protruding ring has a triangular cross-section in the radial direction of the tubular main body, and the second protruding ring has a trapezoidal cross-section in the radial direction of the tubular main body. The size of the bracket is as follows: the wall thickness of the tubular main body and the extension sec...

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Abstract

The invention relates to a biliary tract support, which comprises tubular main body made from the material matched with body; the first protruded ring, the second protruded ring, and the extending part far away the second protruded ring, wherein the invention can avoid stitching match open, to save time, avoid directly function biliary tract match open with bile, without leakage, confirm enough blood supply, confirm successful flow of bile, and improve treatment effect.

Description

(1) Technical field [0001] The invention relates to a bracket for biliary-enteric anastomosis. (2) Background technology [0002] Currently, there are two methods for performing cholangiojejunostomy: manual suturing and stapler stapling; the former is time-consuming and difficult, especially laparoscopic surgery; the latter is fast and accurate, but expensive, and is only suitable for dilated bile ducts. In addition, the existing biliary-jejunostomy techniques cannot fundamentally avoid the occurrence of complications such as anastomotic bile leakage and anastomotic stenosis. (3) Contents of the invention [0003] In order to overcome the shortcomings of the time-consuming and difficult manual suturing method in performing bile duct and jejunum anastomosis in the prior art, the high cost and small scope of application of the stapler method in performing bile duct and jejunum anastomosis, and the shortcomings that the above-mentioned two-fold method is easy to cause complic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/11A61F2/04
Inventor 蔡秀军林辉
Owner ZHEJIANG UNIV
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