Single-Access Cerebral Embolic Filter System
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Solution Overview
Problem
Current medical devices fail to effectively protect all four cerebral arteries from embolic debris during endovascular procedures, leading to potential stroke or neurocognitive deficits, as existing systems often require multiple access points and can interfere with therapeutic procedures or do not provide complete brain protection.
Innovation Solution
A multi-filter system and deflector system are deployed using a single-access point, with filters positioned in the left subclavian and common carotid arteries to intercept and prevent embolic material from entering the cerebral vasculature, ensuring protection of all four arteries supplying blood to the brain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple access points are used to deploy filters in all four cerebral arteries, then complete brain protection is achieved, but device complexity and procedural difficulty increase
Solution Approach 1:
The protection system is divided into multiple independent filter units, each deployable through a separate access point. This segmentation allows flexible configuration where filters can be deployed in different cerebral arteries through different access points, enabling complete brain protection while maintaining procedural flexibility and reducing overall system complexity.
2Reliability
If filters are deployed in all four cerebral arteries, then complete embolic protection is achieved, but interference with therapeutic procedures increases
Solution Approach 1:
Each filter unit is designed with locally optimized characteristics suitable for specific cerebral artery locations. The filters can be selectively deployed only in arteries where embolic protection is needed based on the specific therapeutic procedure being performed, rather than universally deploying all four filters, thus reducing procedural interference while maintaining necessary protection.
3Ease of operation
If a single-access point system is used, then procedural simplicity is improved, but the ability to protect all four cerebral arteries is compromised
Solution Approach 1:
The filter system is designed with universal applicability where the same filter design can be deployed in multiple different cerebral arteries through different access points. This multi-functionality allows a single access point to suffice for many procedures, as the filter can be positioned to protect the relevant cerebral arteries without requiring dedicated filters for each artery, thus maintaining both procedural simplicity and comprehensive protection.
Data Source
AI summary
Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.