Integrated Vibration Sensor Based Stethoscope Design Volume 5 - Issue 2

S Rajkumar¹*, K Sathesh² and Bayisa Taye Mulatu¹

• ¹Assistant Professor, Department of Electronics and Communication Engineering, School of Electrical Engineering and Computing, Adama Science and Technology University (ASTU), Ethiopia
• ²Associate Professor, Department of ECE, Madanapalle Institute of Technology & Science, India

Received:September 13, 2021   Published: September 22, 2021

Corresponding author: S Rajkumar, Assistant Professor, Department of Electronics and Communication Engineering, School of Electrical Engineering and Computing, Adama Science and Technology University (ASTU), Adama, Ethiopia

DOI: 10.32474/JAAS.2021.05.000208

 

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Abstract

Stethoscope is an instrument that employs the technique of separation of two sound signals such as heart sound signals (HSS) and lung sound signals (LSS) by placing its flat sensor on the human body to receive and convey the sounds of internal organs to the diagnostician’s ears through its earphones. The conventional stethoscope contains a condenser microphone with preamplifier to obtain sound signals from the working human body organs. Observed sound signal is a mix of sounds from the heart, lungs, as well as some internal and external interference or background noise as usually happens in electronic devices during the sound signal observation. Recent technology in electronics has been implemented in various medical applications to help physicians. In this way the stethoscope was adapted by various techniques and its output computerized, but every system has some drawback in the distinctness and clarity of observed signals. In this work, piezoresistive and piezocapacitive pressure sensor is designed and implemented in Intellisuite software successfully paves the way for highly reliable stethoscope.

Keywords: Auscultation; Stethoscope; Comsol; Sensors

Abstract| Introduction| Proposed Sensor-Based Digital Stethoscope| An Conclusion| Declarations| References|