Preparation method of heart and brain intravascular stent

Abstract

The invention relates to a preparation method of a heart and brain intravascular stent.The heart and brain intravascular stent prepared through the preparation method can solve the problems that in existing intravascular stents, relative displacement occurs between the intravascular stents and vessels, corrosion resistance is poor, vascular functions are deteriorated, and cells are damaged easily to cause vascular sclerosis; the heart and brain intravascular stent is moderate in strength and good in processing plasticity, mechanical strength and the volume can meet the clinic requirements, the surface of the stent is treated, and accordingly the stent can serve as a medicine carrier and position slow-release medicine in a targeted mode.Meanwhile, the preparation method is relatively low in cost, high in manufacturing precision and high in formation efficiency.

Description

technical field

[0001] The invention belongs to the field of medical applications, and relates to a method for processing and manufacturing an alloy stent used in the field of intravascular interventional therapy, in particular, to a method for preparing a cardiovascular and cerebrovascular stent. Background technique

[0002] At present, common cardiovascular and cerebrovascular diseases mainly include arterial stenosis and aneurysm. If these diseases are not treated in time, they may lead to blood vessel blockage and tumor rupture, which will seriously endanger human life. At present, stent intervention is one of the main methods to treat cardiovascular diseases. The research on the interaction between intervention materials and human tissues has attracted more and more attention. The so-called human tissues refer to blood vessels, bones, organs and body fluids. Vascular stents widely used clinically mainly include bare metal stents and drug-eluting stents.

[0003] An id...