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Stent

A polymer and metal technology, applied in the direction of the bracket, can solve the problems of the influence of the peeling force of the polymer net and the metal net, the unreliable connection of the polymer net and the metal net tube, etc., and achieve the effect of improving the connection reliability

Active Publication Date: 2021-07-16
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to at least solve the problem that the polymer net and the metal net are in a separated state for a long time and are continuously affected by the peeling force in the double-layer network management structure, resulting in an unreliable connection between the polymer net and the metal network management

Method used

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Embodiment Construction

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated...

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Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a stent which comprises a metal mesh tube and a polymer mesh tube, the metal mesh tube comprises a plurality of annular metal wave rings, the polymer mesh tube comprises a plurality of polymer mesh fragments, at least one polymer mesh fragment is embedded between every two adjacent metal wave rings, and the metal wave rings are connected with the edges of the adjacent polymer mesh fragments. According to the stent disclosed by the invention, the polymer mesh tube is divided into the plurality of polymer mesh fragments, and the plurality of polymer mesh fragments are respectively embedded between two different adjacent metal wave rings, so that the metal wave rings and the edges of the adjacent polymer mesh fragments are tightly attached and connected, the metal mesh tube and the polymer mesh tube are ensured to be arranged in the same layer, the situations that blood needs to pass through a two-layer structure of the metal mesh tube and the polymer mesh tube respectively, and the metal mesh tube and the polymer mesh tube are in a separated state for a long time and are continuously influenced by stripping force are avoided, and the connection reliability of the polymer mesh tube and the metal mesh tube is improved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and in particular relates to a bracket. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] Carotid stenosis is a narrowing of the walls of the large arteries in the neck. The carotid arteries carry blood from the heart to the brain, head, and face. With atherosclerosis, plaque builds up on the walls of the arteries, narrowing the vessel in one area or even blocking blood flow completely. [0004] The carotid artery has a "Y"-shaped bifurcation structure, including the common carotid artery, internal carotid artery, and external carotid artery. The blood in the common carotid artery flows into two branches, the internal carotid artery and the external carotid artery, and the blood in the internal carotid artery mainly flows to the brain. The carotid artery stenosis usually occu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/915
CPCA61F2/915A61F2002/9155
Inventor 李郴飞肖本好
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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