Blood vessel covered stent

By designing a vascular stent graft and using a combination of an expandable stent and an artificial vascular graft, the problem of vascular stenosis was solved, achieving stable blood flow and patient safety.

CN224523340UActive Publication Date: 2026-07-21SOUTH CHINA HOSPITAL OF SHENZHEN UNIVERSITY
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Patent Information

Application Number
CN202520316836.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-07-21
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

Thickening of the inner wall of blood vessels leads to narrowing of the blood vessel channel, affecting blood flow. Current technology is difficult to effectively dilate blood vessels and maintain normal blood flow, and the dilation process may cause harm to patients.

Method used

Design a vascular stent graft, comprising an expandable stent and an artificial vascular graft. The expandable stent consists of an inlet section, a main body section, and an outlet section. It supports branch vessels and employs a mesh structure. The artificial vascular graft covers the mesh of the expandable stent to prevent vascular wall proliferation and maintain unobstructed blood flow.

Benefits of technology

It effectively dilates blood vessels, prevents vascular stenosis, maintains normal blood flow, reduces the adverse effects of the dilation process on patients, and prevents blood stasis.

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Abstract

The utility model relates to the technical field of medical instruments, in particular to a blood vessel covered stent which comprises an expansion stent body and an artificial blood vessel covered film, the expansion stent body penetrates into a branch blood vessel from a branch opening of the blood vessel, the expansion stent body is sequentially provided with an entering part, a main body part and an outflow part from the branch opening to the deep position of the branch blood vessel, and the artificial blood vessel covered film is attached to the expansion stent body. The blood vessel is expanded through the expansion stent, a blood vessel channel is prevented from narrowing, normal circulation of blood in the blood vessel is maintained, meanwhile, the expansion stent and the inner wall of the blood vessel are separated through the artificial blood vessel covering film, hyperplasia of the inner wall of the blood vessel towards an inner cavity of the expansion stent is avoided, and the blood channel in the expansion stent is kept unblocked.
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