The Patchkeeper: An Integrated Wearable Electronic Stethoscope with Multiple Sensors

TL;DR

The paper introduces Patchkeeper, a wearable electronic stethoscope with multiple sensors capable of long-term internal body sound recording and vital sign monitoring, aimed at enhancing telemedicine and remote diagnostics.

Contribution

It presents a novel wearable device that integrates multiple sensors for simultaneous long-term recording of internal sounds and vital signs, facilitating remote health monitoring.

Findings

High-quality long-term sound recording from various body parts

Simultaneous monitoring of ECG, PPG, IMU, and internal sounds

Device usability for telemedicine applications

Abstract

Many parts of human body generate internal sound during biological processes, which are rich sources of information for understanding health and wellbeing. Despite a long history of development and usage of stethoscopes, there is still a lack of proper tools for recording internal body sound together with complementary sensors for long term monitoring. In this paper, we show our development of a wearable electronic stethoscope, coined Patchkeeper (PK), that can be used for internal body sound recording over long periods of time. Patchkeeper also integrates several state-of-the-art biological sensors, including electrocardiogram (ECG), photoplethysmography (PPG), and inertial measurement unit (IMU) sensors. As a wearable device, Patchkeeper can be placed on various parts of the body to collect sound from particular organs, including heart, lung, stomach, and joints etc. We show in this paper that several vital signals can be recorded simultaneously with high quality. As Patchkeeper can be operated directly by the user, e.g. without involving health care professionals, we believe it could be a useful tool for telemedicine and remote diagnostics.