Vascular Closure Removable Guide Member Deployment
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Solution Overview
Problem
Current vascular closure devices require high deployment forces to seal vascular punctures, which can cause unnecessary stress on the vessel wall and are inefficient due to the presence of a guide wire within the sealing device.
Innovation Solution
A vascular closure device with a removable guide member that extends through the sealing device, allowing for easier deployment by reducing frictional forces and minimizing the required forces to deploy the sealing components, achieved by removing the guide member before deploying the plug and toggle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a guide wire is present within the sealing device during deployment, then the sealing device can be positioned and deployed along the guide wire, but high deployment forces are required which cause unnecessary stress on the vessel wall
Solution Approach 1:
The guide member is removed from the sealing device after positioning but before deployment of the sealing components. This extraction eliminates the source of frictional forces that would otherwise be required to deploy the plug and toggle along the guide wire, thereby reducing deployment forces and stress on the vessel wall.
Solution Approach 2:
The guide member is positioned within the sealing device before deployment to facilitate accurate positioning along the guide wire. After positioning is complete, the guide member is removed before the actual sealing deployment occurs. This preliminary positioning action allows the sealing components to be accurately placed without requiring high forces during deployment.
2Ease of operation
If a guide member extends through the sealing device, then positioning along the guide wire is facilitated, but frictional engagement increases the forces needed for deployment
Solution Approach 1:
The guide member is extracted from the sealing device after positioning is achieved but before deployment begins. This removes the frictional interface between the guide member and sealing components during deployment, significantly reducing the forces required to deploy the plug and toggle while maintaining the positioning benefits during the positioning phase.
Solution Approach 2:
The deployment process is segmented into distinct phases: positioning phase with guide member engaged, and deployment phase with guide member removed. This temporal segmentation allows the guide member to serve its positioning function without interfering with the deployment function, optimizing both positioning ease and deployment force requirements.
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
The solution reduces the forces needed to deploy the sealing device, minimizing stress on the vessel wall and enhancing the efficiency of the sealing process by creating additional space and reducing frictional engagement, thereby facilitating a more effective seal.
Implementation Method 1
reducing frictional forces and minimizing the required forces to deploy the sealing components
Data Source
AI summary
A vascular closure device configured to seal a puncture site in the vessel wall in a more efficient manner is disclosed. The vascular closure device includes a guide member that extends through a portion of the sealing device and that is removable from the portion the sealing device.