A kind of vascular stent structure

Abstract

A blood vessel stent structure comprising two first diameter sections 1, a second diameter section 2, and two arc sections 3, the diameter of the first diameter section is smaller than the diameter of the second diameter section, two first diameter sections, two arc sections The shape section is arranged symmetrically with respect to the second diameter section, and it is characterized in that: the arc section includes a plurality of first annular support ribs, a plurality of first connecting rib parts, and a first connecting rib part, and the first annular support ribs are arranged along the circumferential direction. Arranged in a wave-like structure, the crest of the wave-like structure is provided with a first connecting arc-shaped portion 5, and the trough of the wave-like structure is provided with a first connecting rib portion, and the adjacent first annular support ribs pass through the first connecting rib portion To connect, the trough of the first annular support rib close to the first diameter section is connected to the first connecting rib through the connecting rib. Its ability to resist uncertain stress is enhanced, and the support strength of the stent is high and the stability is good; the stent provides both physical and drug treatments at the same time, and the structure connecting the drug release part is more suitable than the existing structure, and the drug release is more efficient. Convenient and smooth.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a vascular stent structure. Background technique [0002] Vascular stent refers to the placement of internal stents in the diseased segment on the basis of lumen balloon expansion to achieve the purpose of supporting the stenotic and occluded segment of the vessel, reducing the elastic retraction and reshaping of the vessel, and maintaining the smooth blood flow in the lumen. The internal stent also has the effect of preventing restenosis. Mainly divided into coronary stents, cerebrovascular stents, renal artery stents, aortic stents, etc. However, the existing vascular stents have the problems of low resistance to uncertain stress, insufficient convenience and smooth drug release, and poor support stability. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a vascular stent structure, ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a vascular stent structure, which solves the problems of vascular stents such as low resistance to uncertain stress, inconvenient and unsmooth drug release, and poor support stability.

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