一种植入性动脉血管限流器

By using an arterial blood vessel restrictor composed of a tube and an elastic adjustment component, the problem of recanalization of the tumor-supplying artery is solved, achieving tumor growth inhibition and stable blood supply to normal tissues, thus improving the effectiveness of interventional therapy.

CN224505668UActive Publication Date: 2026-07-17THE FIRST AFFILIATED HOSPITAL OF GUANGXI UNIV OF TRADITIONAL CHINESE MEDICINE (GUANGXI TRADITIONAL CHINESE MEDICINE HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF GUANGXI UNIV OF TRADITIONAL CHINESE MEDICINE (GUANGXI TRADITIONAL CHINESE MEDICINE HOSPITAL)
Filing Date
2025-04-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Among existing interventional treatments, the rate of recanalization of the tumor's blood supply arteries is high, leading to tumor recurrence and continued growth. Existing technologies are insufficient to effectively block the tumor's blood supply.

Method used

An arterial vascular flow restrictor consisting of an expandable tube and an elastic adjustment component is used. After the expandable tube is opened, it is positioned within the blood vessel. The elastic adjustment component is equipped with a flow restriction hole. Combined with a limiting ring and an anticoagulant coating, it simulates a natural stenosis state, reducing tumor nutrient supply and blood flow impact.

Benefits of technology

It significantly reduces the risk of recanalization of tumor-feeding arteries, improves the effectiveness of interventional therapy, protects the blood supply to normal tissues, reduces inflammatory response, and ensures stable blood flow.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种植入性动脉血管限流器，属于医疗器械技术领域，包括具有可扩张特性且两端开口的撑开管体、限位件以及弹性调节部件，所述撑开管体用于置入至目标血管中进行血管扩张，所述限位件位于撑开管体的端部，用于跟随撑开管体的扩张后对血管内壁抵触实现对撑开管体进行限位，所述弹性调节部件与撑开管体的输出端相连接，当所述撑开管体扩张时带动弹性调节部件展开呈半球状，且所述弹性调节部件上开设有限制血液流动的限流孔，本实用新型通过撑开管体以及弹性调节部件上限流孔的作用可以模拟自然肝动脉狭窄生理状态，有力抑制肿瘤生长，显著降低介入后肿瘤供血动脉的再通风险。
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Claims

1. An implantable arterial vascular flow restrictor, characterized in that, include; An expandable tube (1) with expandable characteristics and open at both ends is used to be inserted into a target blood vessel for vascular dilation. The limiting member (2) is located at the end of the expanding tube (1) and is used to limit the expanding tube (1) by contacting the inner wall of the blood vessel after the expanding tube (1) expands. The elastic adjustment component (3) is connected to the output end of the expansion tube (1). When the expansion tube (1) expands, the elastic adjustment component (3) unfolds into a hemispherical shape. The elastic adjustment component (3) is provided with a flow-limiting hole (31) to restrict blood flow.

2. An implantable arterial blood flow restrictor according to claim 1, wherein, The flow-limiting hole (31) has a limiting ring (4) on its inner circumference. The elastic modulus of the limiting ring (4) is greater than that of the elastic adjustment component (3).

3. The implantable arterial blood flow restrictor of claim 1, wherein, The number of the limiting members (2) is two, and the two limiting members (2) are located at the two ends of the expanding tube (1).

4. The implantable arterial blood flow restrictor of claim 1, wherein, The diameter of the limiting member (2) gradually increases from the direction away from the expanding tube (1).

5. The implantable arterial blood flow restrictor of claim 1, wherein, The expandable tube (1) has a mesh structure, and the outer wall of the expandable tube (1) is coated with an anticoagulant coating.

6. An implantable arterial blood flow restrictor according to claim 1, wherein, The elastic adjustment component (3) is made of polyisoprene film.