Methods and apparatus for vascular occlusion

EP4761648A2Pending Publication Date: 2026-06-24TOTAL MEDICAL INC
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
TOTAL MEDICAL INC
Filing Date
2024-05-09
Publication Date
2026-06-24

AI Technical Summary

Technical Problem

Existing vascular occlusion devices face challenges such as prolonged time to achieve blocking, high likelihood of unintentional implant migration, physical and functional degradation, and recanalization, which affect their efficacy in effectively occluding blood vessels.

Method used

A vascular occluder system comprising a radially expandable implant with a porous membrane at its ends, designed to allow blood flow for a predetermined period before preventing further flow, thereby retaining blood for coagulation and granulation, and inducing tissue formation to ensure permanent occlusion.

Benefits of technology

The system achieves rapid vascular occlusion, reduces migration and degradation issues, and effectively prevents recanalization by promoting blood coagulation and granulation, leading to a permanent blockage of the blood vessel.

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Abstract

Implants for vascular occlusion comprise a membrane that is semipermeable to blood components when first implanted. The membrane may be configured to adsorb and / or hold blood cells to contribute to blood coagulation and / or granulation in the porous membrane during a blood-filling time period such that the membrane becomes substantially non-porous to blood flow after the time period. Thereafter, blood that is retained by the implant becomes coagulated and / or granulated into an occluding mass in the blood vessel.
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