Aneurysm flow disrupter device

By designing a braided mesh structure aneurysm disturbance device, the problem of poor compliance of existing devices was solved, resulting in better aneurysm adaptability and reduced risk of displacement, avoiding residual aneurysm neck and improving treatment efficacy.

CN224505503UActive Publication Date: 2026-07-17BEIJING JIUSHI SHENKANG MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING JIUSHI SHENKANG MEDICAL TECH CO LTD
Filing Date
2024-12-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing aneurysm disturbance devices do not conform well to the aneurysm body, and are prone to displacement or aneurysm neck residue.

Method used

An aneurysm disturbance device was designed, which adopts a woven mesh structure, including a bottom dilator and a top dilator. The weaving density and shape are adjustable. The braided filaments are made of nickel-titanium alloy or nickel-titanium-platinum core composite material, and the imaging material is platinum-iridium alloy or tantalum alloy. The weaving density and size difference between the bottom and top dilators are designed to adapt to the morphology of the aneurysm.

Benefits of technology

It effectively avoids the risk of occlusion of the carrier artery or branch vessels, reduces the risk of device displacement within the aneurysm cavity, minimizes the space-occupying effect, avoids residual aneurysm neck, and improves treatment efficacy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an aneurysm flow disturbing device, which comprises: a bottom expansion body in the shape of an ellipsoid or a bowl; a top expansion body in the shape of a cylinder or a circular truncated cone; one end of the bottom expansion body is connected with one end of the top expansion body; the end of the bottom expansion body close to the proximal end is concave inward to form a bottom concave part, and a proximal end mark is arranged in the bottom concave part; the end of the top expansion body close to the distal end is concave inward to form a top concave part, and a distal end mark is arranged in the top concave part. Compared with the prior art, the aneurysm flow disturbing device disclosed by the utility model not only can avoid the risk of occlusion of the carrying artery or branch blood vessel, but also can better conform to the aneurysm body, thereby effectively reducing the displacement risk of the aneurysm flow disturbing device after being implanted into the aneurysm cavity. With the healing of the aneurysm, the space-occupying effect is reduced, and the aneurysm neck is avoided to be left.
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Claims

1. An aneurysm flow disrupter device, comprising: It comprises: a bottom expansion body (3) shaped as an ellipsoid or a bowl; a top expansion body (2) shaped as a cylinder or a truncated cone; one end of the bottom expansion body (3) is connected with one end of the top expansion body (2); the bottom expansion body (3) is concave inwardly at one end close to the proximal end to form a bottom concave portion, and a proximal end mark (4) is arranged in the bottom concave portion; the top expansion body (2) is concave inwardly at one end close to the distal end to form a top concave portion, and a distal end mark (1) is arranged in the top concave portion.

2. The aneurysm flow disruptor according to claim 1, wherein: the aneurysm flow disruptor is a woven mesh structure.

3. The aneurysm flow disruptor according to claim 1, wherein: the weaving density of the bottom expansion body (3) is the same as that of the top expansion body (2).

4. The aneurysm flow disruptor according to claim 1, wherein: the weaving density of the bottom expansion body (3) is greater than that of the top expansion body (2).

5. The aneurysm flow disruptor according to claim 1, wherein: the outer diameter of the top expansion body (2) is smaller than that of the bottom expansion body (3).

6. The aneurysm flow disruptor according to claim 1, wherein: the height of the top expansion body (2) is greater than or equal to that of the bottom expansion body (3).

7. The aneurysm flow disruptor according to any one of claims 1 to 6, wherein: the aneurysm flow disruptor is woven by a weaving wire, and the diameter of the weaving wire is 0.01mm to 0.2mm.

8. The aneurysm flow disruptor according to claim 7, wherein: the number of the weaving wire is 36 to 144.