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http://dx.doi.org/10.9718/JBER.2022.43.2.124

Development of Wireless Electronic Cardiogram and Stethoscope (ECGS) to Measure ECG Signal and Heart Sound  

Cho, Han Seok (Department of Electronic Engineering, Hanbat National University)
Kang, Young-Hwan (Department of Electronic Engineering, Hanbat National University)
Park, Jae-Soon (Department of Electronic Engineering, Hanbat National University)
Choi, Jin Gyu (Department of Electronic Engineering, Hanbat National University)
Joung, Yeun-Ho (Department of Electronic Engineering, Hanbat National University)
Koo, Chiwan (Department of Electronic Engineering, Hanbat National University)
Publication Information
Journal of Biomedical Engineering Research / v.43, no.2, 2022 , pp. 124-130 More about this Journal
Abstract
In this paper, we proposed a portable electronic cardiogram and stethoscope (ECGS) that can simultaneously perform the electrocardiogram (ECG) and auscultation tests to increase the reliability of diagnosis of heart disease. To measure the ECG and heart sound (HS) at the same time, three ECG electrodes and a microphone sensor were combined into a triangular shape with a width of 90 mm and a height of 97 mm that can be held in one hand. In order to prevent skin problems when they contact the patient's skin, a capacitive coupled electrode was selected as the ECG electrode and a silicone material was used in a chest piece with the microphone sensor. For the signals measured from the electrodes and the chest piece, filters were respectively configured to pass only the signals of 0.01-100 Hz and 20-250 Hz, which are frequency bands for ECG and HS. The filtered ECG and HS analog signals were converted into digital signals and transmitted to a PC using wireless communication for monitoring them. The HS could be auscultated simultaneously using an earphone. The monitored ECG had an SNR of about 34 dB and a P-QRS-T waveform is clearly visible. In addition, the HS had an SNR of about 28 dB and both S1 and S2 are clearly visible. It is expected that it can aid doctors' inexperience in analyzing the ECG and HS.
Keywords
Electrocardiogram (ECG); Heart sound; Electronic stethoscope; Portable; Wireless;
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Times Cited By KSCI : 2  (Citation Analysis)
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