Adjustable Electrode Patch for ECG Signal Optimization
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Solution Overview
Problem
The single-lead ECG signal measurement method is limited in accommodating different body structures, as the fixed distance between electrodes cannot be adjusted, leading to insufficient signal strength and accuracy for various users.
Innovation Solution
A physiological signal processing device with adjustable electrodes, where the processing device calculates differential values and signal-to-noise ratios to determine electrode position adjustments, allowing for coarse and fine tuning to optimize ECG signal capture, enabling accurate heartbeat and breathing information extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the single-lead measurement method is used with fixed electrode distance, then the ECG signal measurement is easier to perform, but the measurement precision is insufficient for different body structures
Solution Approach 1:
The patent implements adjustable electrode distance through a movable electrode structure that can be positioned at different locations along the patch. The processing device controls the electrode position based on user-specific parameters, transforming the fixed electrode configuration into a dynamic, adaptable system that maintains both ease of operation and measurement precision across different body structures
Solution Approach 2:
The patent changes the physical parameter of electrode distance by providing multiple selectable positions for the electrode along the patch. The processing device selects appropriate electrode positions based on differential values calculated from ECG signal quality metrics, thereby optimizing measurement precision for different users while maintaining the simplicity of single-lead measurement
2Device complexity
If the electrode distance is fixed in the patch, then the device structure is simpler, but the adaptability to different users' body structures is reduced
Solution Approach 1:
The patent creates a dynamically adjustable electrode system where the electrode can be positioned at different distances from the reference electrode based on user characteristics. This dynamic configuration allows the device to adapt to various body structures without significantly increasing overall device complexity, as the adjustment mechanism is integrated into the existing patch structure
Solution Approach 2:
The patent segments the electrode placement into multiple discrete positions along the patch, allowing selective activation of specific electrode positions based on user needs. This segmentation enables adaptability to different body structures while maintaining a relatively simple device structure, as the electrode itself remains a single component that can be positioned at different locations
Data Source
AI summary
A physiological signal processing device is provided. The physiological signal processing device includes a patch, a plurality of electrodes and a processing device. The plurality of electrodes detect an Electrocardiography (ECG) signal. The processing device is configured in the patch and is coupled to the plurality of electrodes to receive the ECG signal. Furthermore, according to the ECG signal, the processing device calculates a first differential value between a voltage of an R wave of the ECG signal and a reference ECG value, and determines whether the first differential value is greater than or equal to a first threshold to determine whether to adjust the positions of the electrodes. When the positions of the electrodes are determined, the processing device obtains heartbeat information and/or breathing information according to the ECG signal.