Abstract

Stethoscope is acoustic device used to listen heart sounds and monitor pulmonary disease. By using conventional stethoscope it is difficult to capture heart sounds accurately and cannot be recorded for documentation. Wireless stethoscope can be used for remote monitoring of patient heart health by analyzing acoustic properties of the heart. This paper illustrates a wireless wearable stethoscope with pulse oximeter. Wireless stethoscope consists of condenser microphone, pulse rate sensor, stethoscope diaphragm, operational amplifier, RF transceiver module and an App. Initially heart signals were acquired using microphone and pulse rate sensor, obtained signals were filtered and transmitted wireless using RF transceiver for processing. Heart rate was measured and displayed. Using firebase cloud messaging (FCM) technique sends notification to doctor through an app for fast diagnosis.