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Drawstring for removal of stent

A pull-rope and loop-rope technology, used in stents, medical science, prostheses, etc., can solve problems such as difficulty in stent removal

Inactive Publication Date: 2010-11-03
TAEWOONG MEDICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when one of the loops is pulled, the pulling force is concentrated on the end of the stent and is not transmitted to the portion of the stent that is stuck or attached to the damaged portion, making stent removal difficult

Method used

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  • Drawstring for removal of stent
  • Drawstring for removal of stent
  • Drawstring for removal of stent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0044] Such as Figure 3A , Figure 3B , Figure 4A with Figure 4B As shown, the present invention provides a drawstring 50 for removing the stent 10 . The stent 10 includes a cylindrical stent body 14 made by braiding one or more strands of shape memory alloy wires 11 or interweaving them with each other in a zigzag shape so that the mesh 12 is formed by the wires 11 and the curved portion 13 follows the cylindrical stent The circumference of both ends of the main body 14 is formed. The pull cord 50 has an end cord 20 pierced into a corresponding mesh 12 of the cylindrical holder body 14 in a zigzag shape, and formed at one end of the cylindrical holder body 14 in a ring shape. The shackle 21 is formed by connecting the two ends of the end cord 20 .

[0045] Furthermore, the longitudinal strands 30 extend integrally from the end st...

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PUM

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Abstract

Disclosed herein is a drawstring for removal of a stent. The drawstring includes an end string, a longitudinal string and a circumferential string. The end string is formed in an end of the stent body in an annular shape in such a way that the end string passes, in a zigzag manner, through mesh arranged in a circumferential direction of the stent body. A hook loop is formed by tying opposite endsof the end string to each other. The longitudinal string extends at a first end thereof from the end string in the longitudinal direction of the stent body. The circumferential string extends from a second end of the longitudinal string and is formed in an annular shape in such a way that the circumferential string passes, in a zigzag manner, through mesh arranged in the circumferential directionof the stent body.

Description

technical field [0001] The present invention relates generally to a drawcord for removing a stent, and more particularly to a drawcord for removing a stent configured to remove the stent from a lumen when pulled by a stent removal device. ) during removal such as reoperation, the stent is stretched longitudinally and contracted in diameter by the drawstring, so that the stent that has been grasped by the inner wall of the lumen can be easily separated from it, thereby facilitating the removal of the stent. Background technique [0002] Typically, medical stents are used to expand lumens that contract in diameter or to prevent contraction of expanded lumens. [0003] In other words, the function of the medical stent is to expand a lumen contracted, for example, by tumorigenesis such as cancer, or to prevent the development of a contracted lumen. [0004] For example, this medical stent is used to deal with the constriction of the pancreatic duct due to acute pancreatitis, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/84A61F2/86A61F2/95A61M29/00
CPCA61F2002/9528A61F2/95A61F2250/0039A61F2/90A61F2002/9511A61F2/82A61F2/86
Inventor 辛卿珉明炳喆金圣珉元容铉
Owner TAEWOONG MEDICAL CO LTD
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