Single-Arm ECG Measurement Using Six Electrodes
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Solution Overview
Problem
Current physiological signal measurement instruments require ten sensing electrodes for 12-lead ECG signals, necessitating professional application and causing user discomfort, making long-term monitoring impractical.
Innovation Solution
A single-arm electrocardiogram signal measurement device using six sensing electrodes on the upper arm to generate a 12-lead ECG-like signal through a computing circuit that processes physiological signals from specific positioning points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ten sensing electrodes are used for 12-lead ECG measurement, then measurement precision is improved, but device complexity and user discomfort increase
Solution Approach 1:
The patent uses six electrodes on the upper arm to capture physiological signals, then computationally reconstructs a 12-lead ECG signal that copies the characteristics of a traditional 12-lead ECG. The computing circuit processes the limited electrode inputs to generate multiple lead configurations, effectively creating a virtual 12-lead ECG from reduced physical electrodes.
Solution Approach 2:
The patent changes the measurement parameters by using different electrode positioning points on the upper arm (specifically points A1-A3 and P1-P3 as shown in FIG. 2) and applies computational transformations to derive multiple ECG leads from these positions. The computing circuit performs signal processing operations including differential calculations and lead transformations to generate comprehensive ECG data from reduced electrode inputs.
2Measurement precision
If ten sensing electrodes with wires are used, then ECG signal quality is improved, but ease of operation deteriorates due to user discomfort
Solution Approach 1:
The patent extracts the essential ECG measurement function from the traditional 10-electrode configuration and implements it using only six electrodes on the upper arm. By taking out the core measurement capability and relocating it to a more convenient body position, the system maintains signal quality while eliminating the need for chest electrode placement and extensive wire connections.
Solution Approach 2:
The single-arm ECG device enables users to perform self-measurement without requiring professional medical personnel. The simplified electrode placement on the upper arm allows users to independently apply the electrodes and conduct measurements, making long-term monitoring practical and accessible.
3Reliability
If professional medical personnel are required for electrode application, then measurement reliability is improved, but productivity decreases due to time consumption
Solution Approach 1:
The six electrodes on the upper arm serve multiple functions simultaneously, generating data for multiple ECG leads through computational processing. Each electrode contributes to multiple lead calculations, and the system can derive various ECG perspectives from the same physical electrode configuration, enabling comprehensive cardiac monitoring with reduced hardware and simplified application.
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
Reduces the number of electrodes needed, minimizing user discomfort and enabling convenient, long-term ECG monitoring outside clinical settings.
Implementation Method 1
The first sensing electrode, the second sensing electrode, the third sensing electrode, the fourth sensing electrode, the fifth sensing electrode, and the sixth sensing electrode receive multiple physiological signals from six different positioning points located on an upper arm of a user
Data Source
AI summary
Disclosed are a single-arm electrocardiogram (ECG) signal measurement device and a single-arm ECG signal measurement method. The single-arm ECG signal measurement device includes a first sensing electrode, a second sensing electrode, a third sensing electrode, a fourth sensing electrode, a fifth sensing electrode, a sixth sensing electrode, and a computing circuit. The first sensing electrode, the second sensing electrode, the third sensing electrode, the fourth sensing electrode, the fifth sensing electrode, and the sixth sensing electrode receive physiological signals from six different positioning points located on an upper arm of a user. The computing circuit generates ECG signals according to the physiological signals, and generates a 12-lead ECG-like signal according to the ECG signals.