Excisional Device with Articulable Beaks for Vascular Occlusion Removal
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Solution Overview
Problem
Current vascular clearing and restoration devices are limited in their ability to perform minimally invasive, reliable, and multi-functional procedures for removing various occlusions and anomalies, particularly in cardio-vascular applications, and lack the capability for simultaneous removal of different tissue types and phases during a single insertion.
Innovation Solution
A hand-held or mounted medical device configured for single or multiple insertion, capable of removing liquids, solids, and semi-solids, featuring coaxially-disposed work elements with articulable beaks and scoopulae, expansion devices, and drug delivery systems, which can be used for vascular procedures, including atherectomy, thrombectomy, and chronic total occlusion removal, with advanced imaging and energy delivery capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current vascular clearing devices are used, then they can perform basic occlusion removal, but they lack the capability to remove multiple tissue types and perform multi-phase procedures during a single insertion
Solution Approach 1:
The excisional device incorporates multiple work elements with different functions (cutting, scooping, grasping, debulking) that can be selectively deployed from a single device platform, enabling the removal of various tissue types including plaque, thrombus, and calcified material during one procedural insertion
Solution Approach 2:
The device employs a nested configuration where multiple work elements and delivery components are coaxially arranged within each other, allowing sequential deployment of different functional elements through a single access point while maintaining a compact delivery profile
2Reliability
If multiple separate devices are used for different vascular procedures, then each device can be optimized for its specific function, but the procedural complexity and number of insertions increase
Solution Approach 1:
The invention integrates multiple previously separate vascular intervention capabilities (atherectomy, thrombectomy, calcification removal, drug delivery, imaging) into a single unified device system that can perform these functions sequentially or simultaneously through one insertion
3Adaptability or versatility
If traditional atherectomy devices are used, then they can remove plaque, but they lack integrated imaging and energy delivery capabilities for comprehensive vascular restoration
Solution Approach 1:
The device incorporates integrated imaging sensors (optical coherence tomography, intravascular ultrasound), energy delivery systems (laser, radiofrequency, microwave), and multiple mechanical work elements into a single platform, providing comprehensive diagnostic and therapeutic capabilities in one procedure
Data Source
AI summary
A platform device for material excision or removal from vascular structures for either handheld or stereotactic table use may comprise a work element or elements configured to selectively open and close at least one articulable beak or scoopula configured to penetrate and remove intra-vascular materials or obstructions, or follow a central lumen of another device or over a wire in a longitudinal direction. Flush and vacuum tissue transport mechanisms may be incorporated. A single tube or an inner sheath and an outer sheath which may be co-axially disposed relative to a work element may be configured to actuate a beak or beaks or scoopulae and provisions for simultaneous beak or scoopula closing under rotation may be incorporated.