Abstract

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Title:: Design and implement of an intelligent stethoscope capable of synchronous acquisition of cardiopulmonary sound and ECG signal

Author(s):: WANG Zhi1; CHEN Shiyuan2; LU Jiawen1; JI Yunfeng3; CHEN Fuming4; LI Chuantao5; 1. School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China 2. Department of Aviation Medicine, Naval Medical Center, Naval Medical University, Shanghai 200433, China 3. Institute of Machine Intelligence, University of Shanghai for Science and Technology, Shanghai 200093, China 4. Department of Medical Engineering, 940 Hospital of the Joint Service Support Force of the Peoples Liberation Army, Lanzhou 730050, China 5. Aviation Physiology and Psychology Training Team, Naval Medical Center, Naval Medical University, Shanghai 200433, China

Keywords:: Keywords: electronic stethoscope cardiopulmonary sound electrocardiogram audio amplification Bluetooth transmission

Abstract:: The existing stethoscope cannot collect cardiopulmonary sound and ECG signal at the same time. Therefore, a dual-mode stethoscope capable of synchronous acquisition of cardiopulmonary sound and ECG signal is developed. The precise weak signal amplification technology is used to realize the lossless amplification of audio. The single-electrode acquisition of ECG signal is realized with high input impedance design, and the high-fidelity SJR-BTM870-B Bluetooth module is used to complete the lossless transmission of dual-mode audio. The experimental results show that the developed device has high application value and research value.