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Health Monitoring via Heart, Breath, and Korotkoff Sounds by Wearable Piezoelectret Patches by Liuyang Han; Weijin Liang; Qisen Xie; JingJing Zhao; Ying Dong; Xiaohao Wang; Liwei Lin is a Engineering article available to read on EtoBox.

What is Health Monitoring via Heart, Breath, and Korotkoff Sounds by Wearable Piezoelectret Patches about?

## Abstract Real‐time monitoring of vital sounds from cardiovascular and respiratory systems via wearable devices together with modern data analysis schemes have the potential to reveal a variety of health conditions. Here, a flexible piezoelectret sensing system is developed to examine audio physiological signals in an unobtrusive manner, including heart, Korotkoff, and breath sounds. A customized electromagnetic shielding structure is designed for precision and high‐fidelity measurements and several unique physiological sound patterns related to clinical applications are collected and analyzed. At the left chest location for the heart sounds, the S1 and S2 segments related to cardiac systole and diastole conditions, respectively, are successfully extracted and analyzed with good consistency from those of a commercial medical device. At the upper arm location, recorded Korotkoff sounds are used to characterize the systolic and diastolic blood pressure without a doctor or prior calibration. An Omron blood pressure monitor is used to validate these results. The breath sound detections from the lung/ trachea region are achieved a signal‐to‐noise ration comparable to those of a medica

Who reads Health Monitoring via Heart, Breath, and Korotkoff Sounds by Wearable Piezoelectret Patches?

Author

Liuyang Han; Weijin Liang; Qisen Xie; JingJing Zhao; Ying Dong; Xiaohao Wang; Liwei Lin

Publisher

Wiley

Published

2023

Language

EN

Field

Engineering (Physical Sciences)