Multi-Channel ECG System for Cardiovascular Lesion Localization
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Solution Overview
Problem
Current cardiovascular disease diagnosis tools, such as conventional ECG signals, have inadequate spatial resolution and are limited by cost and size, making it difficult to accurately diagnose and locate coronary artery disease lesions.
Innovation Solution
A multi-channel real-time cardiovascular performance evaluation system using a MAMA-EMD algorithm for ECG signal reconstruction, which includes steps to filter noise, smooth signals, and separate characteristic peaks, enabling more accurate detection and localization of cardiovascular disease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional ECG signals are used for cardiovascular disease diagnosis, then the equipment is simple and easy to operate, but the spatial resolution is inadequate and provides limited information
Solution Approach 1:
The patent segments the ECG signal processing into multiple channels (at least 12 channels) corresponding to different spatial positions of the heart. Each channel captures electrical activity from specific regions, enabling spatial resolution while maintaining operational simplicity through automated multi-channel acquisition and processing
Solution Approach 2:
The patent transitions from conventional single-plane or limited multi-plane ECG to a comprehensive multi-channel system that adds spatial dimensionality. By distributing electrodes across multiple body positions and processing signals from at least 12 distinct channels, the system creates a three-dimensional electrical map of the heart, significantly improving spatial resolution without complicating user operation
2Measurement precision
If high-resolution magnetocardiography (MCG) is used to provide sufficient spatial information, then spatial resolution is improved, but the cost and size increase
Solution Approach 1:
The patent creates an electrical copy of the heart's activity patterns through multi-channel ECG signals rather than using complex physical imaging equipment like MCG. By processing electrical potential differences from multiple body surface electrodes, the system reconstructs spatial information that mimics what would be obtained from high-resolution imaging, achieving comparable diagnostic value with simpler, more affordable equipment
Solution Approach 2:
The patent replaces the complex mechanical and physical infrastructure of magnetocardiography equipment with an electrical signal-based system. Instead of using large magnetometers and complex shielding required for MCG, the invention uses standard ECG electrodes and digital signal processing to achieve high spatial resolution, substituting a simpler electrical measurement system for a complex physical imaging system
3Ease of manufacture
If conventional ECG signals are used, then the equipment is simple, but the cost and size limitations restrict application and analysis
Solution Approach 1:
The patent creates a universal multi-channel ECG system that can be manufactured and deployed in various settings (hospital or home) with standardized equipment. The system processes signals from at least 12 channels simultaneously, providing comprehensive spatial information that serves multiple diagnostic functions, making it universally applicable while maintaining ease of manufacture through standardized components and automated processing
Data Source
AI summary
A multi-channel real-time cardiovascular performance evaluation system, includes: a multi-channel ECG signals measurement unit, a multi-channel ECG signals processing device, and an ECG signals reconstruction unit. The method uses a MAMA-END algorithm, to mark ECG signals to replace the original ECG signal, and to extract characteristic peak value of the ECG signal. As such, the method is able to extract and reconstruct a first signal having QRS wave, and a second signal having T wave; then the method detects and marks the start of Q wave and the end of T wave on the first signal and the second signal. Therefore, the method is able to determine and evaluate if a patient does have cardiovascular disease, and to locate the lesion positions of a patient having cardiovascular disease.