Embedded Stethoscope for Real Time Diagnosis of Cardiovascular Diseases

摘要

This paper focuses on the initial assessment of cardiac abnormalities with heart murmurs. At times monitoring the patient Heart auscultations and murmur using a conventional stethoscope may lead to false diagnosis since they are low frequency and amplitude signal, as this procedure requires highly skilled expertise. This paper provides a solution by detecting the abnormality of heart sound earlier and easier by medical expertise. In this paper, an embedded acoustic stethoscope has been designed and implemented to provide a platform for the detection of cardiac disorders using computer aided diagnosis (CAD) of cardiac sound. This handheld device has the capability to diagnose heart beats in real-time which employs signal conversion of analog acoustic signals into digital signal and at the same time can be displayed on a PC using MATLAB GUI for visual elucidation thereby enabling critical analysis of the interpreted data. In addition, a pulse rate monitoring circuit is also incorporated to ensure proper blood circulation.