Vascular Occlusion Device Feedback Mechanism
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Solution Overview
Problem
Existing vascular occlusion devices, such as embolization coils, take a significant period to fully occlude a body cavity, leaving patients at risk due to incomplete occlusion, and rely on external blood pressure monitoring for embolization condition assessment.
Innovation Solution
A vascular occlusion device with an elongate member, deflecting device, and indicator device that provides visual or tactile feedback on occlusion status through deflection of the deflecting device by embolization material, eliminating the need for external blood pressure monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If embolization coils are used to occlude a body cavity, then permanent occlusion is achieved through tissue growth, but it takes a significant period of time for full occlusion and blood may continue to flow past the coil
Solution Approach 1:
The deflecting device is deployed in advance at the target site before embolization material injection. This preliminary positioning allows the device to immediately respond to embolization material overflow, providing real-time feedback on occlusion status without waiting for tissue growth, thus resolving the time delay contradiction
2Measurement precision
If external blood pressure monitoring means are used to determine embolization condition, then occlusion status can be assessed, but the system becomes more complex and requires additional external equipment
Solution Approach 1:
The monitoring function is merged into the occlusion device itself through the deflecting device and indicator device integration. The deflecting device responds to embolization material overflow and transfers this information to the indicator device, combining measurement and indication functions within the catheter system, eliminating the need for separate external monitoring equipment
Solution Approach 2:
The indicator device provides real-time feedback on embolization status by responding to deflecting device movement. This feedback mechanism allows continuous monitoring of occlusion conditions during the procedure, enabling precise assessment without complex external systems
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 quick and reliable occlusion of body cavities with visual or tactile indication of occlusion status, reducing the risk of incomplete occlusion and improving procedural efficiency.
Implementation Method 1
the deflecting device is configured to be deflected by the embolization material
Data Source
AI summary
A vascular occlusion device for occluding a body cavity includes an elongate member, a deflecting device and an indicator device. The elongate member includes a proximal end and a distal end. An embolization material is injected into the body cavity through the distal end. The deflecting device is disposed at the distal end of the elongate member and configured to be deflected by the embolization material. The indicator device is disposed at the proximal end of the elongate member. The indicator device indicates a status of occlusion of the body cavity based on deflection of the deflecting device by the embolization material.