Stent manufacturing method

A bioabsorbable magnesium-based stent for cerebral aneurysms addresses the issue of non-absorbable NiTi stents by promoting thrombosis and eventual absorption, reducing patient burden and medication needs.

JP7875567B2Active Publication Date: 2026-06-18NAT UNIV CORP KUMAMOTO UNIV +4
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NAT UNIV CORP KUMAMOTO UNIV
Filing Date
2024-12-25
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing cerebral aneurysm stents made of NiTi alloy are not bioabsorbable, leading to a significant burden on patients as they remain in the blood vessels after treatment, necessitating ongoing medication to prevent side effects.

⚗Method used

Development of a self-expanding stent made of bioabsorbable magnesium alloys or pure magnesium, woven into tubular braided, cross-coiled, or parallel coiled structures, with optional surface treatments or coatings for controlled bioabsorption and visibility, designed to straddle cerebral aneurysms and promote thrombosis.

🎯Benefits of technology

The bioabsorbable stent effectively treats cerebral aneurysms by promoting thrombosis and eventual absorption, reducing patient burden by eliminating the need for long-term medication and foreign body retention.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a stent for cerebral aneurysm that is formed of a material to be absorbed by an organism.SOLUTION: A stent 10 has self-expanding property and is placed so as to stride across a cerebral aneurysm while being crimped to a vessel wall. The stent includes a magnesium alloy having bioabsorbable property and including 90 atom% or more Mg of or pure magnesium.SELECTED DRAWING: Figure 1
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