Wearable ECG Electrode Layout for Accurate Cardiac Lead Detection
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Solution Overview
Problem
Existing electrocardiography systems face inaccuracies due to non-homogeneous thoraxes and patient-specific differences, leading to errors in cardiac signal detection, particularly in portable devices with limited electrode configurations.
Innovation Solution
A wearable device with a specific electrode arrangement and logic control unit to calculate cardiac leads, using a predefined transformation function to minimize patient variability and positioning errors, enabling accurate detection of cardiac electrical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a limited electrode configuration is used in portable devices, then device portability and ease of use are improved, but measurement precision and reliability of cardiac signal detection deteriorate due to patient-specific differences and non-homogeneous thoraxes
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the transformation function based on patient-specific parameters such as thoracic dimensions, body composition, and electrode positioning. This allows the system to adapt the lead calculation to individual variations, thereby maintaining measurement precision despite using a limited electrode configuration in portable devices.
2Device complexity
If a limited electrode configuration is used in portable devices, then device complexity is reduced, but reliability of cardiac lead detection deteriorates due to inability to account for patient variability
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously receives information about patient-specific characteristics and electrode positioning, then adjusts the transformation function accordingly. This closed-loop approach ensures that cardiac lead detection remains reliable even with simplified electrode configurations, as the system compensates for variations in real-time.
Solution Approach 2:
The system changes operational parameters by adapting the transformation function based on measured patient characteristics, allowing reliable cardiac lead detection with fewer electrodes.
3Device complexity
If standard transformation functions are used without patient-specific adaptation, then device complexity is reduced, but measurement precision deteriorates due to non-homogeneous thoraxes and patient differences
Solution Approach 1:
The patent dynamically changes the transformation function parameters based on patient-specific measurements such as thoracic dimensions, body composition, and electrode positioning. This adaptive approach maintains measurement precision while managing device complexity through automated parameter adjustment rather than requiring complex hardware.
Solution Approach 2:
The transformation function transitions from a static, one-size-fits-all approach to a dynamic, patient-specific adaptation. The system automatically adjusts transformation parameters based on real-time patient characteristics, enabling accurate cardiac lead calculation without increasing physical device complexity.
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
The device provides accurate and real-time detection of cardiac leads, reducing errors and enabling remote management of cardiac signals, while being easy to use and adaptable to individual patient variations.
Implementation Method 1
detecting cardiac electrical potentials
Data Source
AI summary
Described is a detection device (1) for detecting cardiac electrical signals, wearable by a patient, comprising a right lower electrode (11) and a left lower electrode (12), for detecting cardiac electrical potentials, positioned in alignment with each other on a first horizontal axis (x′), spaced apart from each other by a first distance (d1); a right upper electrode (13) and a left upper electrode (14), for detecting cardiac electrical potentials, positioned above said lower electrodes (11, 12), and being aligned with each other on a second horizontal axis (x″), parallel to said first horizontal axis (x′), and spaced from each other by a second distance (d2), greater than or equal to said first distance (d1); and a logic control unit (U), electrically connected to said electrodes (11, 12, 13, 14), wherein said logic control unit (U) is configured to receive a first bipolar lead (DI′), detected between said left upper electrode (14) and said right upper electrode (13); a second bipolar lead (DII′), detected between said left lower electrode (12) and said right upper electrode (13); a third bipolar lead (DIII′), detected between said left lower electrode (12) and said left upper electrode (14); a first unipolar lead (V1′), detected between said right lower electrode (11) and a first average potential, and a second unipolar lead (V2′), detected between said left lower electrode (12) and said first average potential, wherein said first average potential is equal to the average of detected signals, with respect to a reference potential, on said right upper electrode (13), on said left upper electrode (14) and on said left lower electrode (12). The invention also relates to a system comprising said device and a relative method of operation.