Peripheral vascular stent with reduced migration capability

Abstract

The invention provides a peripheral vascular stent with reduced migration capability, and solves the problems of poor flexibility and migration of a stent after implementation caused by unreasonable structure of an existing peripheral vascular stent. The peripheral vascular stent is composed of an annular supporting body and a connecting body connecting the two annular supporting bodies, the annular supporting body is formed by overall laser cutting of a metal pipe, a plurality of W-shaped bends arranged continuously are arranged in the annular supporting body, and reverse V-shaped elastic parts are arranged at the bent positions. The two ends of the connecting body are provided with expanded clamps, and clamping grooves connected with the clamps in a clamped or hinged mode are formed in the reverse V-shaped elastic parts. The annular rigidity of the annular supporting bodies at the two ends of the peripheral vascular stent is larger than that of the annular supporting body in the middle. The annular supporting bodies and connecting bodies of different materials and sizes can be combined for use, so that the stent has biological performance and mechanical performance, and is of a composite structure with excellent performance.

Description

technical field [0001] The invention relates to the technical field of peripheral vascular stents. Background technique [0002] At present, various vascular stents have been developed in the field of vascular stent technology. The style of vascular stents is usually related to the purpose of medical treatment, and its design and manufacture are strictly limited. [0003] The peripheral blood vessels described in the present invention refer to arteriovenous blood vessels including limbs, head and neck, and trunk. Common peripheral vascular diseases, such as arteriovenous thrombosis, arteriosclerotic occlusive disease, deep vein thrombosis, varicose vein disease, aneurysm, arteriovenous fistula, etc., as well as arteriovenous inflammatory disease. [0004] Peripheral vascular stents, as the name suggests, are stents used to treat peripheral vascular lesions, and are widely used clinically. According to the manufacturing and molding process of the stent, the shape of the met...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the deficiencies of the prior art, the present invention provides a peripheral vascular stent with reduced migration ability. On the premise of ensuring that the performance of the stent is not reduced, for example, the radial support force is not reduced, and the structure of the existing peripheral vascular stent is solved. Poor compliance caused by unreasonable and migration of stent after implementation

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