A vascular stent with anti-longitudinal deformation

Abstract

The present invention provides a vascular stent with anti-longitudinal deformation. The vascular stent includes several groups of annular supports and connecting ribs connected between every adjacent two groups of the annular supports; the vascular stent is nearly The adjacent annular supports at the end are connected by straight-line connecting ribs, and the middle and distal ends of the vascular stent are connected by S-shaped connecting ribs, taking into account the longitudinal strength and flexibility of the vascular stent in the longitudinal direction; at the same time, Increase the number of circumferential linear connecting ribs at the proximal end of the vascular stent, further enhance the longitudinal strength of the proximal end of the vascular stent, and ensure the overall flexibility and transportability of the vascular stent so that it can reach the vascular lesion smoothly Moreover, the width of the straight-line connecting ribs at the proximal end of the vascular stent is increased to further ensure that the proximal end of the vascular stent has sufficient longitudinal strength, and at the same time increases its contact area with the plaque, which can reduce the In-stent restenosis.

Description

technical field [0001] The invention relates to a balloon-expandable vascular stent for treating coronary artery stenosis or blockage by using percutaneous coronary intraluminal angioplasty in the technical field of medical device manufacturing, and in particular to a vascular stent with anti-longitudinal deformation. Background technique [0002] With the development of society and the continuous improvement of the quality of human life, health has become the most concerned issue in people's daily life. Various acute and chronic vascular occlusive diseases caused by coronary atherosclerotic heart disease seriously endanger human life, health and safety. According to the statistical analysis of the American Heart Association, cardiovascular disease has become the number one killer of human life and health. At present, there are three types of treatment for cardiovascular diseases caused by vascular stenosis: drug therapy, surgery and interventional therapy. Vascular stent ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiencies in the prior art, and provide a vascular stent with anti-longitudinal deformation, which is suitable for ensuring that the proximal end of the stent does not undergo compression deformation when the balloon delivery system is withdrawn after the initial successful placement of the stent , by changing the number of circumferential ribs of the stent, the width of the ribs of the axial ribs, and the shape of the axial ribs, taking into account the longitudinal flexibility of the stent and the longitudinal strength of the proximal end of the stent, stent thrombosis and in-stent restenosis can be prevented other serious adverse events

Images