Acoustical design of digital stethoscope for improved performance

Thiagarajan, Raj C. and Sankaran, Prema and Hafeez-Baig, Abdul and Elangovan, Kodeeswari and Gururajan, Raj (2012) Acoustical design of digital stethoscope for improved performance. In: COMSOL Conference India 2012, 2-3 Nov 2012, Bangalore, India.

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Abstract

Stethoscopes are in use for more than 200 years for medical diagnostics, especially for auscultation in the healthcare domain. Recently, unprecedented growth in mobile technology has revived the use of stethoscopes for Telehealthcare. Digital or electronic stethoscopes are increasingly researched for use in Telehealthcare within the healthcare domain. Cardiovascular diseases have become highly
prevalent worldwide, especially in the subcontinent. Improvements in diagnostics will improve the quality of life and prevent the loss of life. This research paper mainly focuses on the acoustical and multiphysics design aspects of the stethoscope for improved acoustical
performance. A COMSOL model of the stethoscope chest piece was developed. The model was setup to investigate the effects of geometry, material of construction, noise and
input pressure. The sound transmission efficiency of the components was investigated with multiphysics models by coupling the acoustical and structural performances. The
effect of ambient noise on the performance was also studied and reported. This COMSOL model wasis further used to investigate the effects of shape, size and material parameters on the performance and improvement in the
acoustic transmission and noise isolation. The frequency response of the system was also investigated for resonance and performance in relation to auscultation of cardio, lung and other sounds. Through this research paper the
researchers share the initial findings for the development of acoustical and multiphysics design aspects of the stethoscope. The ultimate objective is to leverage the improvement in the acoustics of the stethoscope for use in
Telehealthcare.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © COPYRIGHT 2012 by COMSOL Inc. All rights reserved. No part of this media may be copied or reproduced in any form without prior written consent from COMSOL Inc.
Faculty / Department / School: Historic - Faculty of Business and Law - School of Information Systems
Date Deposited: 29 Aug 2013 00:15
Last Modified: 27 Jun 2017 05:19
Uncontrolled Keywords: telehealthcare; telemedicine; auscultation; stethoscope; acoustics; fluid structure interaction; noise level; cardiology
Fields of Research : 09 Engineering > 0903 Biomedical Engineering > 090304 Medical Devices
08 Information and Computing Sciences > 0806 Information Systems > 080609 Information Systems Management
02 Physical Sciences > 0203 Classical Physics > 020301 Acoustics and Acoustical Devices; Waves
Socio-Economic Objective: C Society > 92 Health > 9202 Health and Support Services > 920203 Diagnostic Methods
URI: http://eprints.usq.edu.au/id/eprint/23970

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