Probe-Cavity Motion Modeling for Respiratory Motion Compensation
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Solution Overview
Problem
Current surgical procedures in cavities or chambers, such as the heart, face challenges in maintaining probe or catheter stability due to respiratory motion, leading to inaccurate site stability data updates and missed short movements between respiratory phases, resulting in incomplete or incorrect ablation sites.
Innovation Solution
A system and method that estimates probe-chamber motion in real-time by compensating for respiration motion, using sensors to model respiratory cycles and correlate catheter motion with heart motion, allowing for continuous site stability assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If site stability data is updated only at end expirium locations, then the system can maintain simple timing based on normal respiration cycles, but short and sharp movements between end expiriums are missed and site stability data is incomplete
Solution Approach 1:
The system continuously updates site stability data throughout the entire respiration cycle rather than only at discrete end expirium points. The processor continuously receives probe location data and determines site stability information at multiple time points within each respiration cycle, ensuring no movements are missed while maintaining continuous monitoring capability.
Solution Approach 2:
The system uses real-time probe location data as feedback to dynamically determine site stability. By continuously monitoring probe position and comparing it against chamber wall positions, the system can identify stability periods anywhere in the respiration cycle, not just at predetermined end expirium moments, thus capturing all relevant stability information.
2Reliability
If the system waits for end expirium phases to update stability data, then respiration cycle timing can be simplified, but the exact start or break time may deviate and movements may be missed
Solution Approach 1:
The system continuously monitors probe location data and uses this feedback to detect probe stability relative to the chamber wall at any moment during the respiration cycle. This real-time feedback mechanism ensures that no movements are missed regardless of when they occur, while the processor automatically handles the complexity of correlating probe motion with respiration phases.
Solution Approach 2:
The system replaces mechanical timing based on detecting end expirium phases with a computational approach that continuously analyzes probe location data. The processor uses algorithmic analysis of probe position over time to identify stability periods, substituting mechanical respiratory phase detection with computational motion analysis that is more reliable and less prone to timing deviations.
3Measurement precision
If site stability is assessed only at discrete time points, then processing load is reduced, but short movements between assessments are not captured
Solution Approach 1:
The system performs continuous site stability assessment by continuously receiving probe location data and continuously determining site stability information. This continuous processing captures all probe movements regardless of duration, while the processor efficiently handles the data stream by analyzing probe position relative to chamber wall position at every time point without requiring discrete sampling intervals.
Data Source
AI summary
The present disclosure provides systems, apparatuses and methods that provide probe-cavity location and motion data based on probe location and respiration data.