Wireless ECG Lead Synthesis via Non-Standard Electrode Signals
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Solution Overview
Problem
Current cardiac monitoring systems using ECG leads are limited by the need for wires, which restrict patient mobility and can lead to electrode detachment, and previous solutions for wireless ECG generation have inaccuracies due to impedance variations among individuals.
Innovation Solution
A system and method for wireless generation of standard ECG leads using a plurality of electrodes with a remote receiver station that generates standard ECG leads from non-standard bipolar signals detected by closely located electrodes, allowing for wireless transfer and synthesis of ECG signals without the need for wires post-initial calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires are used to connect electrodes to the ECG machine, then the ECG signals can be transmitted reliably, but the patient's mobility is restricted and the risk of electrode detachment increases
Solution Approach 1:
The patent extracts the wire connection from the system by using wireless communication technology. The ECG data is transmitted from the electrodes through a portable device using wireless communication protocols, eliminating the physical wire connection while maintaining reliable data transmission and fully restoring patient mobility.
Solution Approach 2:
The patent replaces the mechanical wire connection system with an electronic wireless communication system. Instead of using physical wires to transmit ECG signals, the system uses electronic data processing and wireless communication protocols to achieve the same function without mechanical constraints.
2Device complexity
If the number of electrodes is reduced for wireless monitoring, then the system becomes simpler and more portable, but the accuracy of standard ECG lead generation deteriorates due to impedance variations
Solution Approach 1:
The patent applies parameter changes by using impedance measurement and compensation algorithms. The system measures the actual impedance values of the reduced electrode set and uses these parameters to calculate and compensate for deviations when generating standard ECG leads, thereby maintaining accuracy despite using fewer electrodes.
Solution Approach 2:
The patent creates a mathematical model that copies the characteristics of standard 12-lead ECG from a reduced electrode configuration. By using algorithms to synthesize and reconstruct the full standard ECG leads from the limited electrode data, the system achieves accurate standard ECG output without requiring all standard electrodes.
3Measurement precision
If impedance measurement and compensation is implemented, then ECG accuracy is maintained with reduced electrodes, but the processing complexity and computational requirements increase
Solution Approach 1:
The patent performs impedance measurement and compensation calculations in advance during an initial calibration phase. By pre-calculating the compensation parameters and storing them for later use, the system reduces the computational burden during actual ECG monitoring, maintaining accuracy while minimizing real-time processing complexity.
Data Source
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AI summary
A system for wireless generation of at least one standard ECG lead comprises a plurality of electrodes (403; 101-103; 301-305) for application to a subject at separate points thereof and a remote receiver station (200) having means for generating at least one standard ECG lead from signals detected by a first group (101, 403; 301, 403) of said plurality of electrodes. The system further comprises means (100) for generating at least two non-standard ECG signals from bipolar signals detected by a second group (101-103; 301-305) of the plural- ity of electrodes, processor means (202) in the remote receiver station (200) for calculation of a transform synthesizing each generated standard ECG lead from at least two of the non-standard ECG signals, means (400, 401, 111) for discon- nection of the first group (101, 403; 301, 403) of electrodes from the subject fol- lowing the calculation, and means (124) for wireless transferring of the non- standard ECG signals to the remote receiver station (200) following the disconnection of the first group (101, 403; 301, 403) of electrodes.