Dynamic Boundary Control for Catheter Ablation Safety
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Solution Overview
Problem
During interventional medical procedures like catheter ablation, maintaining precise control and preventing collateral damage in dynamic environments, such as the beating heart, is challenging due to the complexity of positioning and movement of medical devices.
Innovation Solution
A system comprising a treatment device with a localization system and a processor that defines a geometric boundary around the treatment portion, providing responses when the device enters or leaves this boundary, and optionally using additional reference devices to prevent unwanted energy application in sensitive areas, ensuring controlled movement and reduced collateral damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a catheter is moved within a heart chamber to perform ablation therapy, then the treatment can reach the target tissue, but the beating heart causes instability and makes precise positioning difficult
Solution Approach 1:
The system dynamically adapts to the moving treatment environment by continuously tracking the treatment device position and updating the geometric boundary in real-time. The boundary moves with the heart's motion, allowing the catheter to maintain effective treatment while accommodating the dynamic physiological environment.
Solution Approach 2:
The localization system provides continuous feedback on the treatment device position relative to the geometric boundary. This feedback enables real-time adjustments to maintain the device within the desired treatment zone despite heart motion, improving positioning reliability.
2Reliability
If ablation energy is applied to treat the target tissue, then the therapeutic effect is achieved, but collateral damage to surrounding sensitive areas may occur
Solution Approach 1:
The system preemptively prevents collateral damage by establishing a geometric boundary that excludes sensitive areas before treatment begins. The boundary acts as a protective constraint that prevents the treatment device from inadvertently contacting or damaging surrounding tissues.
Solution Approach 2:
The geometric boundary is defined in advance of the actual ablation treatment, allowing the operator to plan and verify the treatment path before applying energy. This preliminary configuration ensures that sensitive areas are identified and protected before treatment commences.
3Adaptability or versatility
If the treatment device is allowed to move freely to adapt to heart motion, then the device can maintain contact with moving targets, but control precision and boundary adherence become difficult to maintain
Solution Approach 1:
The geometric boundary is designed to be dynamic rather than static, moving in coordination with the heart's physiological motion. This allows the treatment device to adapt to heart motion while maintaining precise control within the moving boundary, reconciling adaptability with position control precision.
Data Source
AI summary
A system for performing an interventional medical procedure is disclosed. The system includes a treatment device having a treatment portion, a localization system, and a means for defining a boundary about the treatment portion relative to location data point. The system may further be configured to provide a response when a portion of the treatment device enter or leaves a defined boundary, region, or range. Methods for performing interventional medical procedures that, among other things, reduce or prevent collateral damage to non-target regions are also disclosed.