ECG Lead Type Detection Using Heart Vibration Sensing
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Solution Overview
Problem
Existing electrocardiographic waveform measurement devices require manual lead type selection, which can lead to incorrect lead types being used during measurements, affecting analysis accuracy.
Innovation Solution
The device includes electrodes and a vibration detection unit to automatically determine whether the measured waveform is from chest lead or limb lead by detecting heart vibrations, with a control unit to execute lead type determination processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual lead type selection is implemented, then device complexity is reduced, but measurement precision deteriorates due to potential incorrect lead type usage
Solution Approach 1:
The system automatically detects and determines lead type information without requiring manual user input. The vibration detection unit and control unit work together to self-determine whether chest leads or limb leads are being used, eliminating the need for manual selection while ensuring accurate lead type identification for proper waveform analysis
Solution Approach 2:
The patent replaces the manual mechanical selection process with an automated detection system using vibration sensors and signal processing. Instead of relying on user input, the system uses vibrational characteristics detected by the vibration detection unit to automatically determine lead type, substituting human operation with automated sensing and processing
2Measurement precision
If automatic lead type detection is implemented, then measurement precision is improved, but device complexity increases due to additional detection components
Solution Approach 1:
The vibration detection unit serves multiple functions: it detects heartbeats for cardiac activity monitoring and simultaneously provides data for lead type determination. By making the vibration detection unit multi-functional, the patent avoids adding separate dedicated sensors for lead type detection, thereby reducing the increase in device complexity while still achieving automatic lead type identification
Solution Approach 2:
The patent combines the lead type determination function with the existing vibration detection and electrocardiographic measurement functions. The control unit integrates multiple functions (waveform measurement, vibration detection, and lead type determination) into a unified system, merging separate functions that could have been implemented as separate devices into a single integrated system
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
Accurately determines the lead type used in electrocardiographic waveform measurements, enhancing analysis accuracy and preventing incorrect lead type usage.
Implementation Method 1
a vibration detection unit configured to approach a chest region of the measurement target to detect vibration based on a beat of a heart of the measurement target
Data Source
AI summary
An electrocardiographic waveform measurement device includes a plurality of electrodes configured to measure an electrocardiographic waveform of a measurement target, a vibration detection unit configured to approach a chest region of the measurement target to detect vibration based on a beat of a heart of the measurement target, and a control unit configured to execute measurement processing for the electrocardiographic waveform. The control unit further executes lead type determination processing for determining, based on a detection result from the vibration detection unit, at least whether the electrocardiographic waveform measured by the measurement processing is an electrocardiographic waveform obtained by chest lead measurement.