Aorta covered stent and aorta covered stent assembly

The diaphragm connection between the main coated stent and the branch coated stent forms a parallelogram structure, which solves the problem of inaccurate alignment of the branch coated stent, and realizes aortic coated stent design without the need to cut into healthy blood vessels, which is suitable for a variety of patients.

CN120458774AActive Publication Date: 2025-08-12BEIJING PERCUTEK THERAPEUTICS CO LTD
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Patent Information

Application Number
CN202510968806.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-08-12
Estimated Expiration
2045-07-15

AI Technical Summary

Technical Problem

In the existing endovascular treatment technology of the aortic arch, the alignment between the branched coated stent and the main coated stent is inaccurate, resulting in poor blood flow or obscuring the branched blood flow. During the operation, healthy blood vessels need to be cut open or the scope of application is small, and the compression occupies a large space.

Method used

The main coating stent and the branch coating stent are connected through the first diaphragm and the second diaphragm to form a parallelogram structure similar to that of the instability. The branch coating stent is flexibly swinging for easy alignment, and the axis is parallel during the compression process. When the guidewire is supersed, the second outer convex surface is used to form a slide effect, without the need to cut a healthy blood vessel.

Benefits of technology

It achieves no need to cut healthy blood vessels, has a wide range of application, high flexibility, small compression space, and easy selection of guidewires. It is suitable for patients with vascular stenosis or tortuousness, reducing surgical trauma.

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Abstract

The invention discloses an aorta covered stent and an aorta covered stent assembly, and belongs to the technical field of medical instruments. The aorta covered stent comprises a main covered stent body and branch covered stents; a mounting opening is formed in the main body covered stent; the branch covered stent comprises an outer port and an inner port, the side, close to the upstream, of the edge of the outer port is connected with the mounting port through a first membrane, and the first membrane is provided with a first outer convex face and a first inner concave face which are oppositely arranged; one side, close to the downstream, of the edge of the inner port is connected with the mounting port through a second membrane, and the second membrane is provided with a second outer convex surface and a second inner concave surface which are oppositely arranged; the first membrane and the second membrane are connected through the third membrane, and the first membrane, the second membrane and the third membrane seal the installation opening. The assembly comprises a connecting covered stent and the aorta covered stent. The aorta covered stent which does not need to cut the healthy blood vessel of a patient, and is wide in application range, high in flexibility and small in compression occupied space can be formed.
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