ECG Signal Processor Automatic Electrode Inversion Correction
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Solution Overview
Problem
Conventional electrocardiography measurement devices struggle with electrode inversion, leading to incorrect readings due to user error, as they lack the ability to automatically detect and correct electrocardiogram signals.
Innovation Solution
An electrocardiography measurement method and device that utilize a signal processor to determine baseline, maximum, and minimum wave amplitude values, automatically detecting electrode inversion and performing a correction process, including signal inversion processing and optional alarm notifications, to ensure accurate electrocardiogram signal acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device uses simple 1-Lead electrocardiography for user convenience, then ease of operation is improved, but measurement precision deteriorates due to electrode inversion errors
Solution Approach 1:
The device automatically detects electrode inversion and corrects the electrocardiogram signal without requiring user intervention. The signal processor compares wave amplitudes and baseline values to identify inversion and performs automatic correction, making the system self-correcting and eliminating the need for users to carefully remember electrode placement requirements.
Solution Approach 2:
The signal processor continuously monitors the electrocardiogram signal characteristics (wave amplitudes and baseline values) and provides feedback to detect electrode inversion. When inversion is detected through amplitude comparison, the system automatically adjusts the signal processing to correct the inversion, creating a closed-loop feedback mechanism that maintains measurement precision.
2Measurement precision
If the device automatically detects and corrects electrode inversion, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces manual electrode placement verification with an automated signal processing system. Instead of relying on mechanical electrode design features or physical cues to prevent inversion, the system uses electrical signal analysis (comparing wave amplitudes and baseline values) to detect and correct inversion, substituting mechanical prevention with electronic detection and correction.
Solution Approach 2:
The signal processor performs multiple functions: it amplifies the electrocardiogram signal, analyzes wave amplitude characteristics, detects electrode inversion, and corrects the signal. By consolidating these functions into a single multi-functional processing unit, the device achieves automatic inversion detection and correction without proportionally increasing overall 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 method and device provide automatic correction of electrocardiogram signals, enhancing user convenience by ensuring accurate readings and reducing errors caused by electrode misplacement.
Implementation Method 1
a signal amplifier electrically coupled with the first electrode and the second electrode for amplifying the cardio electrical signal to generate an electrocardiogram signal
Data Source
AI summary
In an electrocardiography measurement method and device, a signal processor determines a baseline value, a maximum wave amplitude value, and a minimum wave amplitude value in an electrocardiogram signal. When the signal processor determines that a difference of the maximum wave amplitude value minus the baseline value is less than a difference of the baseline value minus the minimum wave amplitude value, the signal processor performs a correction process for correcting the electrocardiogram signal.