An Ear-Worn Vital Signs Monitor
Name
An Ear-Worn Vital Signs Monitor.pdf
Size
4.89 MB
Format
Adobe PDF
Checksum (MD5)
57b140217a2d25e0be12018589ce2e37
Author(s)
He, David Da
Winokur, Eric S.
Sodini, Charles G.
Date Issued
October 2015
Journal
IEEE Transactions on Biomedical Engineering
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
He, David Da, Eric S. Winokur, and Charles G. Sodini. “An Ear-Worn Vital Signs Monitor.” IEEE Trans. Biomed. Eng. 62, no. 11 (November 2015): 2547–2552.
Version
Author's final manuscript
Abstract
This paper presents a wearable vital signs monitor at the ear. The monitor measures the electrocardiogram (ECG), ballistocardiogram (BCG), and photoplethysmogram (PPG) to obtain pre-ejection period (PEP), stroke volume (SV), cardiac output (CO), and pulse transit time (PTT). The ear is demonstrated as a natural anchoring point for the integrated sensing of physiological signals. All three signals measured can be used to obtain heart rate (HR). Combining the ECG and BCG allows for the estimation of the PEP, while combining the BCG and PPG allows for the measurement of PTT. Additionally, the J-wave amplitude of the BCG is correlated with the SV and, when combined with HR, yields CO. Results from a clinical human study on 13 subjects demonstrate this proof-of-concept device.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1109/TBME.2015.2459061
