Aortic Arch Embolic Protection Filter with Haptic Positioning Feedback
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Solution Overview
Problem
Existing embolic protection devices face challenges in accurately positioning filters in the aortic arch during heart surgery, leading to potential gaps that allow particles to bypass the filter and making it difficult for users to confirm optimal placement due to lack of clear feedback.
Innovation Solution
An embolic protection device with a filtering unit and feeding unit, featuring a frame and filter mesh, provides haptic and visual feedback for precise positioning through anatomical adaptation and resistance signals, along with a tapered distal area for better geometric fit and reduced contact with the aortic arch, and a handle system for stable placement and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter is made to fit tightly in the aortic arch to prevent particle bypass, then the sealing performance is improved, but the positioning difficulty and user assessment difficulty increase
Solution Approach 1:
The patent incorporates haptic feedback mechanisms that provide tactile signals to the operator when the filter reaches the optimal position in the aortic arch. This feedback system allows the operator to sense when the filter is properly seated without requiring complex visualization systems, thereby maintaining easy operation while achieving reliable sealing.
2Measurement precision
If the filter structure is made more complex to achieve precise positioning, then the positioning precision is improved, but the device complexity increases
Solution Approach 1:
The filter design incorporates self-positioning features that allow the device to automatically align and seat itself in the correct position within the aortic arch. The haptic feedback system also provides automatic positional confirmation, eliminating the need for complex external positioning aids or sophisticated control systems, thereby maintaining simple device architecture while achieving high positioning precision.
3Reliability
If the filter is made highly adaptive to the aortic arch anatomy, then the sealing performance is improved, but the stability during placement may be compromised
Solution Approach 1:
The filter employs a dynamic structure that transitions from a less adaptive configuration during insertion and placement to a highly adaptive configuration once positioned. During placement, the filter maintains a stable, less conforming shape that facilitates controlled positioning. After placement, the filter transforms to conform tightly to the aortic arch anatomy, providing excellent sealing performance while maintaining placement stability throughout the procedure.
Data Source
AI summary
The invention concerns an embolic protection device for inserting into an aortic arch to prevent embolisms. The invention moreover concerns a handle for such an embolic protection device, as well as a system consisting of said handle and the embolic protection device and a system consisting of a handle, an embolic protection device and a catheter. Through the invention, an embolic protection device for inserting into an aortic arch, comprising a filtering unit and a feeding unit, is provided, wherein the filtering unit comprises a frame and a filter mesh, and the filter mesh is placed on the frame, the filtering unit has a proximal area and a distal area, wherein the filtering unit is designed in such a way that it can, at least partially, be positioned in the aortic arch, and wherein, once the filtering unit is appropriately positioned, haptic feedback is generated, which signals to the user the final position.