Blood vessel bracket prosthesis

A technology of vascular stents and prostheses, which is applied in the field of medical instruments, can solve problems such as inability to bend freely, vascular deformation, and small movement range, and achieve the effect of avoiding vascular deformation

Active Publication Date: 2011-06-22
SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the elasticity of the alloy wire, the movement range of the stent in the axial direction is relatively small, and it is relatively hard in the axial direction and cannot be bent freely.
Due to the tortuosity of blood vessels, after the stent-graft is implanted in the human body, discounts may occur at positions with greater curvature, causing deformation of blood vessels and bringing new risks to patients

Method used

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Embodiment Construction

[0017] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] A kind of vascular stent prosthesis disclosed in the embodiment of the application, such as figure 1 As shown, the vascular stent prosthesis mainly includes an artificial vascular prosthesis 3 and a self-elastic stent 4, and I is a partial enlarged view of the vascular stent prosthesis.

[0019] Wherein, the artificial vascular prosthesis 3 is covered and fixed on the outside of the self-elastic stent 4 by sutures 5 . The outer wall of the self-elastic stent 4 is in contact with the inner wall of the artificial vascular prosthesis 3 . After the vascular stent prosthesis is implanted in the human blood vessel, the outer wall of the artificial vascular prosthesis 3 is closely attached to the inner ...

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Abstract

The invention discloses a blood vessel bracket prosthesis. The blood vessel bracket prosthesis comprises an artificial blood vessel prosthesis and a self-elasticity bracket, wherein the artificial blood vessel prosthesis is fixed on the outer side of the self-elasticity bracket through a suture line; the self-elasticity bracket consists of a plurality of self-expansion rings; the self-expansion rings are partially sutured on the artificial blood vessel prosthesis; a tube body of the artificial blood vessel prosthesis has a corrugate shape; the plurality of self-expansion rings are dispersedly arranged in the artificial blood vessel prosthesis at uniform intervals; and parts near the sides of the self-expansion rings, are sutured on the artificial blood vessel prosthesis. The blood vessel bracket prosthesis can avoid blood vessel deformation caused by that a tectorial membrane bracket is folded after being implanted into a human body and can avoid other problems caused by blood vessel deformation.

Description

technical field [0001] The application relates to the field of medical instruments, in particular to a vascular stent prosthesis. Background technique [0002] Aortic aneurysm is a mass on the wall of the aorta, which is caused by pressure on the weak artery wall. It can be divided into three types according to the location: ascending aortic aneurysm, aortic arch aneurysm, and descending aortic aneurysm. When an aneurysm reaches a certain size it is at risk of rupture, which can lead to internal bleeding that can be life-threatening for the patient. The current treatment method is mainly to implant a covered stent to seal the aneurysm from the inside to relieve the impact of blood pressure on the weak aortic wall, thereby reducing the risk of its rupture. [0003] In the existing covered stents, the self-elastic stent is usually composed of multiple self-expanding rings connected by alloy wires, such as figure 1 As shown, 1 is a self-expanding ring, and 2 is an alloy wire....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/06A61F2/82
Inventor 谢志永李建军李雨周红芳赵振心罗七一
Owner SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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