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Biliary stent

A biliary tract and film-covered technology, applied in the field of biliary tract stents, can solve the problems of easy movement, poor matching, and non-degradable biliary support, and achieve the effect of reducing inflammation and good fixation

Pending Publication Date: 2021-09-17
THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a biliary tract stent, which solves the problems of non-degradable biliary support, poor matching, easy movement, and poor biocompatibility during liver transplantation

Method used

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Embodiment Construction

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings and technical solutions that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the following descriptions The drawings are only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0032] First, through scanning and three-dimensional reconstruction, the specific indicators of the biliary stent are constructed. The specific operations are as follows: collect MRI tomographic medical images of liver transplantation donors and recipients, import MRI image data in DICOM format; view layer by layer, select the range and position of the biliary anastomosis of the donor and recipient; use 3D processing software to perform Three-dimensional reconstruction of the biliary tract of ...

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Abstract

The invention aims to provide a biliary stent and solves the problems that a biliary stent is non-degradable, poor in matching, prone to moving and poor in biocompatibility in the liver transplantation process. The biliary stent is used for biliary support of an anastomosis part after liver transplantation and comprises a first stent body, a second stent body, a fixing part and a covering film; the first stent body and the second stent body are of a net-shaped hollow structure integrally formed through 3D printing; the outer diameter of the first stent body and the outer diameter of the second stent body are the same as the inner diameter of a donor biliary tract and the inner diameter of a receptor biliary tract respectively; the fixing part is arranged on the outer surface of the joint of the first stent body and the second stent body; and the covering film is arranged on the inner surface of the joint of the first stent body and the second stent body.

Description

technical field [0001] The invention relates to the technical field of biliary support in liver transplantation, in particular to a biliary support. Background technique [0002] Since 2015, when the posthumous organ donation of citizens was launched in an all-round way, the domestic organ transplantation industry has developed rapidly, and the number of organ donations and organ transplants currently ranks first in the world. However, various postoperative complications are still the main cause of abnormal liver function, loss of graft function and even death of recipients, especially biliary tract complications. At this stage, the incidence of biliary complications is still as high as 12%, and it can be as high as 25%-40% in living donor liver transplantation. The blood supply of biliary tissue is poor, and it is easy to suffer from ischemia-reperfusion injury. Especially for DCD, fatty liver and elderly liver donors, the incidence of biliary complications after liver tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/04B29C64/386B33Y50/00A61F2/848
CPCA61F2/90A61F2/04B29C64/386B33Y50/00A61F2/848A61F2002/041A61F2240/002A61F2250/0067A61F2002/8483
Inventor 何晓顺唐云华许静红黄金波陈茂根吴成林
Owner THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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