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Quick-mounting biliary tract internal drainage stent for treatment

An internal drainage and quick-loading technology, which is applied in the field of medical devices, can solve the problems of tumors easily entering between memory metal grids, memory metal recovery time is long, and lack of positioning and placement means, so as to reduce secondary blockage of biliary tract and improve The effect of improving the safety of the operation and improving the effect of the support limit

Active Publication Date: 2021-01-29
SUZHOU FRANKENMAN MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the tumor is easy to enter between the memory metal grids, which leads to the need to separate the tumor when the drainage stent is taken out, which easily leads to the rupture of the tumor surface, and the existing biliary drainage stent only uses the material of the memory metal itself Performance support, lack of self-stability, and lack of effective positioning and placement means, waiting for a long time for memory metal recovery, and a quick-installed biliary drainage stent for treatment is proposed

Method used

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  • Quick-mounting biliary tract internal drainage stent for treatment
  • Quick-mounting biliary tract internal drainage stent for treatment
  • Quick-mounting biliary tract internal drainage stent for treatment

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Embodiment approach

[0049] The specific implementation is: after the outer support frame 301 is placed in the inner biliary tract, the first memory wire 3011 and the second memory wire 3012 made of the material of the outer support frame 301 can expand and recover after being heated, and the first memory wire 3012 after expansion and recovery The memory wire 3011 and the second memory wire 3012 can pull the electric heating wire 3013 to expand and fit the external biliary tissue. When the external support frame 301 needs to be taken out, the endoscopic pipeline drives the outer tube 201 and the internal cable 202 to be inserted into the limit seat 101, and when the limit block 203 moves into the through groove 112, the endoscopic pipeline is driven to rotate by an external mechanism The outer sleeve 201 rotates in the limit block 203 in the limit groove 113, at this time the air valve 204 communicates with the inner air bag 102, the inner cable 202 pumps air to the inner air bag 102, and the suppo...

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Abstract

The invention discloses a quick-mounting biliary tract internal drainage stent for treatment, and belongs to the technical field of medical instruments. The stent comprises a quick-mounting mechanism,a guide wire mechanism sleeves one side of the quick-mounting mechanism, an outer support mechanism is fixedly connected to one side of the guide wire mechanism, an inner support mechanism is fixedlyconnected to an inner cavity of the outer support mechanism, the outer supporting mechanism comprises an outer supporting frame, the outer supporting frame is formed by winding and weaving first memory metal wires, second memory metal wires and electric heating metal wires, an inner cavity of the outer supporting frame is in transmission connection with the inner supporting mechanism, and one side of the outer supporting frame is fixedly connected with a balance weight pad. According to the invention, through the arrangement of an inner air bag, quick mounting and positioning can be carried out through the matching of the inner air bag, an inner connecting cable and an air valve, and postoperative suture is not required to be carried out after the memory metal of the outer support frame is heated and expanded for limiting supporting, so that the operation time is remarkably shortened, the postoperative risk caused by overlong operation time is reduced, and the operation safety is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a quick-installed biliary drainage bracket for treatment. Background technique [0002] According to the structural characteristics of endoscopes, endoscopes can be divided into two types: rigid rigid endoscopes and flexible fiber endoscopes. Classified by disciplines, there are digestive endoscopy, thoracoscopy, laparoscopy, respiratory endoscopy, cystoscopy, pyeloscopy, hysteroscopy, arthroscopy, ventriculoscopy, nasopharyngoscopy, vascular endoscopy and cardiology. Bile duct stenosis is the cicatricial narrowing of the bile duct lumen caused by bile duct injury and recurrent cholangitis or congenital. In endoscopic shell treatment, biliary drainage stents are often used as surgical instruments in endoscopic surgery. Biliary drainage stents are used to slow down the condition of patients with malignant biliary obstruction by placing stents on the biliary tract. [000...

Claims

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Application Information

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IPC IPC(8): A61F2/90A61M29/04
CPCA61F2/90A61M29/02
Inventor 陈飞宋杰
Owner SUZHOU FRANKENMAN MEDICAL EQUIP
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