Differential cardiopulmonary monitoring system for artifact-canceled physiological tracking of athletes, workers, and COVID-19 patients
Hyoyoung Jeong, Jong Yoon Lee, KunHyuck Lee, Youn J. Kang, Jin‐Tae Kim, Raudel Avila, Andreas Tzavelis, Joohee Kim, Hanjun Ryu, Sung Soo Kwak, Jong Uk Kim, Aaron Banks, Hokyung Jang, Jan‐Kai Chang, Shupeng Li, Chaithanya K. Mummidisetty, Yoonseok Park, Simone Nappi, Keum San Chun, Young Joong Lee, Kyeongha Kwon, Xiaoyue Ni, Ha Uk Chung, Haiwen Luan, Jae-Hwan Kim, Changsheng Wu, Shuai Xu, Anthony Banks, Arun Jayaraman, Yonggang Huang, John A. Rogers
Abstract
Soft, skin-integrated electronic sensors can provide continuous measurements of diverse physiological parameters, with broad relevance to the future of human health care. Motion artifacts can, however, corrupt the recorded signals, particularly those associated with mechanical signatures of cardiopulmonary processes. Design strategies introduced here address this limitation through differential operation of a matched, time-synchronized pair of high-bandwidth accelerometers located on parts of the anatomy that exhibit strong spatial gradients in motion characteristics. When mounted at a location that spans the suprasternal notch and the sternal manubrium, these dual-sensing devices allow measurements of heart rate and sounds, respiratory activities, body temperature, body orientation, and activity level, along with swallowing, coughing, talking, and related processes, without sensitivity to ambient conditions during routine daily activities, vigorous exercises, intense manual labor, and even swimming. Deployments on patients with COVID-19 allow clinical-grade ambulatory monitoring of the key symptoms of the disease even during rehabilitation protocols.