Cardiac Surface Dipole Mapping for Arrhythmia Localization
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Solution Overview
Problem
Existing methods for localizing cardiac arrhythmias, such as electrophysiological measurements and body surface mapping, are imprecise and fail to accurately identify the origin and mechanisms of arrhythmias, limiting the effectiveness of treatment.
Innovation Solution
A device comprising electrodes and ultrasound transducers on a wearable garment that records electrical activity and tissue motion to generate real-time dipole density maps, allowing precise localization of arrhythmia origins and conduction gaps, and can be used with ablation devices for targeted treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electrophysiological measurements and body surface mapping are used to localize cardiac arrhythmias, then treatment can be initiated, but the localization precision is insufficient and treatment accuracy is limited
Solution Approach 1:
The patent transitions from two-dimensional body surface mapping to three-dimensional epicardial surface mapping by placing electrodes directly on the heart's outer surface. This dimensional change enables precise spatial localization of arrhythmia origins and conduction gaps, resolving the limitation of imprecise two-dimensional projections.
Solution Approach 2:
The patent introduces a specialized mapping catheter with multiple electrodes as an intermediary tool between non-invasive body surface mapping and direct endocardial recording. This catheter enables epicardial surface mapping, providing intermediate precision that bridges the gap between external mapping and internal recording while preserving arrhythmia mechanism information.
2Measurement precision
If invasive electrophysiological catheters are inserted into the heart, then arrhythmia origins can be localized, but the procedure complexity and patient risk increase
Solution Approach 1:
The mapping catheter serves multiple functions: it records electrical potentials from multiple electrodes, provides three-dimensional spatial positioning, and enables both diagnostic mapping and therapeutic guidance. This multi-functionality consolidates what would otherwise require separate procedures, reducing overall procedural complexity while maintaining high localization precision.
Solution Approach 2:
The system automatically processes recorded potentials through algorithms that identify arrhythmia origins and conduction gaps without requiring complex manual analysis. The catheter and processing system work together to self-determine critical arrhythmia characteristics, reducing the complexity of expert interpretation and加快ing the diagnostic process.
3Ease of operation
If traditional body surface mapping is used, then non-invasive measurement is achieved, but the information detail on arrhythmia mechanisms is insufficient
Solution Approach 1:
The patent divides the epicardial surface into multiple discrete electrode recording sites along the catheter, enabling segmental analysis of arrhythmia propagation. This segmentation allows detailed mapping of conduction gaps and reentrant circuits by examining electrical activity at each individual electrode location, providing mechanism details that unified body surface mapping cannot capture.
Solution Approach 2:
The patent transitions from two-dimensional body surface mapping to three-dimensional epicardial surface mapping by placing electrodes directly on the heart's outer surface. This dimensional change enables precise spatial localization of arrhythmia origins and conduction gaps, resolving the limitation of imprecise two-dimensional projections.
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 precise localization and treatment of cardiac arrhythmias by providing detailed dipole density maps and conduction-gap information, enhancing treatment accuracy and effectiveness.
Implementation Method 1
an array of multiple electrodes... configured to record electrical activity of the heart
Implementation Method 2
one or more ultrasound transducers... configured to emit sound waves... one or more ultrasound sensors... configured to receive reflections of the sound waves
Data Source
AI summary
Disclosed are devices, systems, and methods for determining the dipole densities on a cardiac surface using electrodes positioned on a torso of a patient.