Phase Singularity Identification Using Single-Electrode Catheter
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Solution Overview
Problem
Current methods for identifying phase singularities in cardiac muscle cells, particularly for atrial fibrillation treatment, are time-consuming and costly due to the need for multi-electrode catheter recordings.
Innovation Solution
A system and method using a single electrode catheter to receive and process electrogram signals, calculating phases using the arctan 2 function, and identifying phase singularities based on specific conditions, significantly reducing the time and cost compared to conventional technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multi-electrode catheter recording is used to identify phase singularity, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The invention extracts the essential function of phase singularity detection from the complex multi-electrode system and implements it using a single electrode catheter. By focusing on the critical measurement at one location and using mathematical phase calculation from single-electrode signals, the system achieves the necessary measurement precision without requiring multiple electrodes simultaneously.
Solution Approach 2:
The invention creates a mathematical model that replicates the phase information normally obtained from multi-electrode recordings. By calculating phase from single-electrode electrogram signals using mathematical transformations, the system produces equivalent phase singularity identification results without physical multi-electrode arrays.
2Measurement precision
If multi-electrode catheter recording is used to identify phase singularity, then measurement precision is improved, but time consumption increases
Solution Approach 1:
The invention extracts the essential phase information from continuous single-electrode recordings and identifies phase singularities in real-time or near-real-time. By eliminating the need to coordinate and process data from multiple electrodes simultaneously, the system dramatically reduces the time required for phase singularity identification while maintaining measurement precision.
3Measurement precision
If multi-electrode catheter is used, then phase singularity detection capability is improved, but cost increases
Solution Approach 1:
The invention replaces expensive, complex multi-electrode catheters with simpler, single-electrode catheters that are more economical. The single-electrode catheter can be used effectively for the procedure and then disposed of or reused, significantly reducing the overall cost of atrial fibrillation ablation procedures while maintaining the capability to detect phase singularities through mathematical processing of the recorded signals.
Data Source
AI summary
A phase singularity identification system includes: a signal reception unit for receiving a single activity electrogram signal measured through a single-electrode catheter at a particular point of a cardiac muscle cell; a phase calculation unit for calculating a phase from the received single activity electrogram signal; and a phase singularity identification unit for identifying through the calculated phase if the particular point of the cardiac muscle cell is a phase singularity. Accordingly, it is possible to identify the phase singularity of a rotor by using a single-electrode catheter rather than a multi-electrode catheter, thereby significantly reducing time required and costs spent in comparison with prior art, and it is possible to accurately identify the phase singularity of the rotor, thus the system can be used for a radiofrequency electrode catheter ablation procedure for cardiac arrhythmia treatment.