Multi-Electrode Module with Automatic Lead Search for ECG Measurement
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Solution Overview
Problem
Conventional ECG measurement techniques using 12 lead positions face challenges in accurately positioning and attaching electrodes, leading to inaccurate and unreliable data due to variations in patient anatomy and difficulty in attaching electrodes correctly, especially for unskilled users.
Innovation Solution
A multi-electrode module with a nonconductive patch and sensor array, featuring a reference electrode at the center and individually selectable electrodes in a circular arc, allows for simplified attachment and selection of measurement electrodes, enabling reproducible ECG signal measurement regardless of attachment location or electrode orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional 12 lead position ECG measurement is used, then diagnostic information can be obtained, but electrode positioning becomes complex and time-consuming
Solution Approach 1:
The patent divides the electrode system into a modular multi-electrode module that can be attached as a single unit to the chest, rather than requiring individual electrode placement at 12 specific positions. This segmentation reduces the complexity of electrode arrangement while maintaining measurement capability.
Solution Approach 2:
The multi-electrode module is designed to serve multiple functions: it can measure ECG signals, determine heart rate, and identify lead positions automatically. The module integrates multiple electrodes and functionality into a single universal component that simplifies the measurement process.
2Measurement precision
If multiple electrodes are attached to precise positions, then accurate ECG data is obtained, but the operation becomes time-consuming and requires specialized knowledge
Solution Approach 1:
The electrode positions and connections are pre-configured within the multi-electrode module before attachment. The module is designed with predetermined electrode arrangements that automatically correspond to the required measurement positions, eliminating the need for real-time precise positioning during attachment.
Solution Approach 2:
The system includes automatic lead search functionality that autonomously identifies the correct lead positions and configures the measurements without requiring manual adjustment or specialized knowledge from the operator. The module essentially configures itself upon attachment.
3Ease of operation
If electrodes are attached at slightly different positions, then ease of attachment is improved, but measurement reliability deteriorates
Solution Approach 1:
The system automatically adjusts the electrical parameters and signal processing based on the actual electrode positions detected during the lead search process. This allows the system to compensate for minor position variations and maintain measurement reliability regardless of exact attachment locations.
Solution Approach 2:
The system performs automatic lead search and detection to identify the actual electrode positions and signal characteristics. This feedback mechanism allows the system to adapt and reconfigure the measurements based on the actual electrode placement, ensuring reliable results even when electrodes are attached at slightly different positions than ideal.
4Adaptability or versatility
If the polarity of heart electricity signal changes with electrode arrangement, then measurement flexibility is improved, but user convenience for unskilled users deteriorates
Solution Approach 1:
The system automatically detects and compensates for polarity changes and signal orientation issues through the automatic lead search process. The microprocessor identifies the correct lead configurations and adjusts the signal processing accordingly, eliminating the need for users to manually adjust polarity or orientation settings.
Solution Approach 2:
The system dynamically changes the electrical parameters and signal processing methods based on the detected electrode arrangements and signal characteristics. This allows the system to maintain consistent, interpretable results regardless of the physical orientation or polarity configuration of the electrode module.
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
This solution facilitates convenient and accurate measurement of biological signals, including heart rate and ECG data, by simplifying the electrode arrangement and ensuring consistent signal polarity, thereby improving user convenience and diagnostic accuracy.
Implementation Method 1
Currents generated from the heart in the chest flow along the surface of the skin and produce a voltage difference between two electrodes attached to the skin
Data Source
AI summary
A method, medium, and apparatus measuring biological signals using a multi-electrode module, with a lead search method. An apparatus for measuring biological signals by using a multi-electrode module, includes a multi-electrode module having a non-conductive patch and a sensor array including a ground electrode and a plurality of individual electrodes, an electrode selection unit selecting a plurality of electrode pairs including a reference electrode and a measurement electrode from the plurality of individual electrodes depending on a type of the biological signal to be measured, and a signal processing unit for obtaining the biological signals from the plurality of electrode pairs.