Automated Vascular Closure Device for Arterial Puncture Sealing
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Solution Overview
Problem
Current vascular closure devices require manual deployment, leading to user-dependent tactile manipulation, multiple procedural steps, long learning curves, low precision, and increased complications such as bleeding, pseudo-aneurysms, and prolonged hospital stays due to inefficient sealing of arterial punctures.
Innovation Solution
A closure device with automated deployment functionality, comprising a biodegradable footplate and plug made from biocompatible metals or polymers, which minimizes tactile manipulation, reduces user training time, and provides a secure, precise seal by locking in place across the vessel wall, allowing early patient ambulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual deployment of closure devices is used, then user control and flexibility are maintained, but tactile manipulation complexity and learning curve increase
Solution Approach 1:
The closure device automatically positions and deploys itself within the puncture site without requiring manual manipulation by the operator. The device uses its own structural features (footplate, plug, wire) to achieve self-positioning and self-deployment, eliminating the need for complex tactile manipulation skills
Solution Approach 2:
The patent replaces manual mechanical manipulation with an automated deployment mechanism. The closure device transitions from requiring operator hand-eye coordination and tactile feedback to an automated system that uses pre-programmed mechanical actions to achieve closure
2Reliability
If multiple procedural steps are required for closure, then comprehensive sealing can be achieved, but procedure time and complexity increase
Solution Approach 1:
The patent combines multiple closure functions into a single integrated device structure. The footplate, plug, and wire work together as one unified system that achieves sealing in a single deployment action, eliminating the need for multiple separate procedural steps
Solution Approach 2:
The closure device is pre-configured with all necessary components (footplate, plug, wire) in their correct positions before deployment. This preliminary arrangement allows the device to perform multiple sealing functions simultaneously without requiring sequential manual manipulation during the procedure
3Measurement precision
If manual positioning is used, then flexibility in placement is maintained, but positioning precision decreases
Solution Approach 1:
The device automatically positions itself at the correct location within the puncture site using its inherent structural features. The footplate and plug self-align with the vessel wall and puncture tract, eliminating the need for operator skill in precise positioning
4Reliability
If prolonged pressure bandage application is used, then bleeding control is improved, but patient mobility and comfort decrease
Solution Approach 1:
The patent replaces the external mechanical pressure system (bandage and sandbag) with an internal closure device that mechanically seals the puncture site from within. This substitution eliminates the need for prolonged external compression while maintaining effective bleeding control
Data Source
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AI summary
The present invention relates generally to medical devices for sealing and closing passages formed through tissue. More specifically, the present invention relates to devices for sealing or closing an opening formed through biological tissue comprising a distal or outside margin or surface, and a proximal or inside margin or surface (i.e., a wall thickness). The openings comprise percutaneously formed punctures, incisions, or other openings formed through biological tissue, such as in blood vessels, organs, and the like.