Aneurysm Neck Bridge Openings for Stable Intrasaccular Occlusion
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Solution Overview
Problem
Existing cerebral aneurysm treatment methods are inadequate, with many aneurysms remaining undetected until rupture, leading to significant morbidity and mortality, and existing occlusion devices do not effectively address the need for better neck coverage and stability within the aneurysm sac.
Innovation Solution
An intrasaccular aneurysm occlusion device featuring a neck bridge with proximal openings for inserting embolic pieces or flowable material, which can be collapsed and inverted to cover the aneurysm neck, combined with a flexible distal mesh or net to enhance occlusion within the aneurysm sac.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing occlusion devices are used, then aneurysm treatment can be performed, but neck coverage and stability within the aneurysm sac are insufficient
Solution Approach 1:
The occlusion device is divided into multiple functional segments: a neck bridge component with proximal openings for neck coverage, and a distal mesh or net component for sac occlusion. This segmentation allows each component to be optimized for its specific function while working together to provide overall stability and effectiveness.
Solution Approach 2:
The distal mesh or net is positioned within the aneurysm sac, while the neck bridge is positioned at the neck region, creating a nested configuration where the mesh is contained within the sac and the bridge bridges the neck opening. This nesting provides layered protection and enhanced stability.
2Reliability
If better neck coverage is achieved, then occlusion efficacy improves, but device complexity increases
Solution Approach 1:
The neck bridge is designed with proximal openings specifically at the neck region to provide localized coverage and support where it is most needed. The distal mesh provides localized occlusion within the sac. This local quality approach enhances occlusion efficacy at critical locations without requiring complex structures throughout the entire device.
Data Source
AI summary
This invention is an intrasaccular aneurysm occlusion device with a neck bridge with one or more proximal openings which is inserted into an aneurysm sac to cover the neck of the aneurysm sac. Embolic pieces (or flowable material) are inserted through the openings into the aneurysm sac. The neck bridge can have a convex first shape which is collapsed and inverted into a concave second shape. The neck bridge can be used in combination with a flexible distal net or mesh.