Biliary duct jejunum anastomotic scaffold

A cholangiojejunostomy, tubular technology, applied in the field of cholangiojejunostomy stents, can solve the problems of high cost, time-consuming, and small scope of application of cholangiojejunostomy, so as to avoid scar hyperplasia, improve long-term curative effect, and avoid direct effects Effect

Active Publication Date: 2009-04-08
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0019] refer to figure 1 , a biliary-intestinal anastomosis stent, comprising a tubular body 1 made of polyglycolic acid (PGA), an absorbable material for human body, with a first protruding ring 2 and a second protruding ring 3 on the tubular main body 1, the first and second protruding rings The rings are circular rings symmetrical to the axis of the tubular body, and the second protruding ring 3 is located at the end of the tubular 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 part is trapezoidal. The size of t...

Embodiment 2

[0022] 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 formed by the axis of the tubular main body. A centrally symmetrical ring with a second raised ring at the end of said 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 se...

Embodiment 3

[0024] 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 and 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 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 section of the tubular main...

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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 biliary-enteric anastomosis bracket. (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 complicatio...

Claims

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Application Information

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