Multi-Phase Intravascular Device for Embolic Protection and Atherectomy
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Solution Overview
Problem
Current medical devices are inadequate for effectively preventing and removing clots, plaque, and thrombus materials during vascular interventions, particularly in intra-vascular procedures, as they often require multiple insertions and lack efficient mechanisms for capturing and analyzing both solid and liquid thrombotic materials.
Innovation Solution
A multi-phase intra-vascular interventional device configured with co-axially located hypodermic tubes featuring laser cuts and flexible components that expand and contract to trap and remove thrombotic materials, incorporating a nosecone, flexible membrane, and inner tube for vacuum aspiration, allowing for both embolic protection and atherectomy functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple insertions are used to remove clots and plaque, then thorough cleaning is achieved, but procedure time and patient risk increase
Solution Approach 1:
The device merges multiple functions (filtering, atherectomy, thrombectomy, aspiration) into a single integrated system that can be deployed in one insertion, eliminating the need for multiple separate procedures while achieving thorough cleaning of the vasculature
Solution Approach 2:
The interventional device is designed with universal multi-functionality, incorporating a filter portion for embolic protection, atherectomy portion for plaque removal, thrombectomy portion for clot removal, and aspiration capability, allowing all functions to be performed during a single procedure
2Reliability
If multiple insertions are performed for complete thrombus removal, then thorough treatment is achieved, but patient risk and procedure complexity increase
Solution Approach 1:
Multiple therapeutic functions are merged into one device: the filter portion traps emboli, the atherectomy portion removes plaque, the thrombectomy portion extracts thrombus, and aspiration removes debris, all achievable in a single insertion without requiring multiple separate procedures
Solution Approach 2:
The device provides universal multi-functionality by integrating embolic protection, atherectomy, thrombectomy, and aspiration capabilities into a single interventional system, reducing procedure complexity while ensuring complete thrombus removal
3Measurement precision
If solid and liquid thrombotic materials are not captured for analysis, then procedure speed increases, but diagnostic accuracy decreases
Solution Approach 1:
The filter portion acts as an intermediary that captures both solid embolic materials and liquid thrombotic materials, preventing them from entering the bloodstream while allowing the procedure to continue efficiently, and enables subsequent analysis of the captured materials for diagnostic purposes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient prevention and removal of thrombotic materials during a single insertion, providing effective embolic protection, atherectomy capabilities, and the ability to analyze materials, while maintaining blood flow and allowing for temporary stenting or graft placement, thus addressing the limitations of existing devices.
Implementation Method 1
inner tube for vacuum aspiration
Data Source
AI summary
A device for intra-vascular embolic-thrombolic protection, as well as embolectomy/thrombectomy and atherectomy interventional procedures and methods. At least a portion of the working end of the device may be formed monolithically from a single hypodermic tube, or may be formed of monolithic inner and outer tubes with fixed or movable guide wire elements and imaging modalities. The device may comprise structures enabling coring, expansion within a vascular structure and vascular wall shaving, as well as filtration, stabilization and capturing of thrombotic or embolitic material during an intervention procedure.