Blood vessel bracket prosthesis

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....

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

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