Complex support rib vascular stent

Abstract

The invention discloses a complex support rib vascular stent. The stent is a hollowed-out tube and comprises multiple groups of hollowed-out rings, each group of hollowed-out rings comprise a first hollowed-out ring unit and a second hollowed-out ring unit which are in mirror symmetry; each first hollowed-out ring unit comprises multiple first sawtooth-shaped support ribs which are connected end to end and attached to a cylindrical surface where the inner wall of the hollowed-out tube is located; each first sawtooth-shaped support rib comprises a first support rib, a second support rib, a first support connecting rib, a third support rib and a fourth support rib which are sequentially connected; each second hollowed-out ring unit comprises multiple second sawtooth-shaped support ribs which are connected end to end and attached to the cylindrical surface where the inner wall of the hollowed-out tube is located; each second sawtooth-shaped support rib comprises a fifth support rib, a sixth support rib, a third support connecting rib, a seventh support rib and an eighth support rib which are sequentially connected. The vascular stent has good flexibility and thus can be pressed and held on a balloon to be smoothly conveyed to the affected part and has the capacity of smoothly passing complex vessels to reach the lesion part.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a stent for blood vessels, especially a stent with complex support ribs, which has good flexibility, and can be pressed and held on a balloon to smoothly transport the stent to the affected area. At the same time, the affected area can Therefore, it exerts excellent support performance, ensures that the stent bears the pressure of the blood vessel wall and blood flow pressure during use, reduces rebound, and prolongs the service life of the stent. Background technique [0002] Cardiovascular disease is the third leading cause of human death and seriously threatens human life. Human blood vessels are composed of inner wall, outer wall, intima, and lumen. Due to abnormal blood lipid metabolism in the blood, cholesterol and other lipids accumulate on the inner wall of blood vessels, causing problems such as narrowing of blood vessel walls and atherosclerosis, which leads t...

AI Technical Summary

Problems solved by technology

This is a process that makes the two ends of the stent tilt, which will cause scratch damage to the blood vessel tissue near the two ends of the stent, and bring hidden dangers to the implanted stent

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