Digital Stethoscope

摘要

Early detection of heart diseases is a very important area of research and several diagnostic methods have been developed. In this article, a low cost diagnostic tool which analyses the digitized sound of the heart beat is presented. This could be used to detect abnormalities such as aortic and mitral stenosis, mitral and aortic regurgitation, and rheumatic valvular lesions. The instrument displays the heart sound and also maintains long term records of a patient for future use.