Wearable Millimeter-Wave Device for Contactless Measurement of Arterial Pulses

被引：64

作者：

Johnson, Jessi E. ^{[1
,2
]}

Shay, Oliver ^{[2
]}

Kim, Chris ^{[2
,3
]}

Liao, Catherine ^{[2
]}

机构：

[1] AltruEM Consulting LLC, San Francisco, CA 94105 USA

[2] Blumio Inc, San Francisco, CA 94105 USA

[3] GE Healthcare, Chicago, IL 60661 USA

来源：

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS | 2019年 / 13卷 / 06期

基金：

美国国家科学基金会;

关键词：

Radar antennas; Skin; Biomedical monitoring; Antenna measurements; Millimeter wave radar; Blood pressure; electromagnetic propagation; FMCW radar; heart rate; medical simulation; millimeter wave radar; radar antennas; vital sign detection; wearables; TRANSIT-TIME; PRESSURE; NONCONTACT; ANTENNA;

D O I：

10.1109/TBCAS.2019.2948581

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Wearable monitors for measuring vital signs such as blood pressure will greatly impact the medical field. This work presents a millimeter-wave, radar-based system for performing accurate measurements of arterial pulse waveforms without contacting the region that is pulsing. Electromagnetic and radar-system simulation models are utilized to demonstrate the viability and safety of this approach. This is followed by hardware/software implementation and a study on 12 human subjects. Measured radial arterial waveforms exhibit signal strengths that are well above the noise floor of the system and a morphology that would be expected in an arterial pulse. Finally, comparison of the radar-based signals with a reference tonometer indicates a strong correlation between waveforms, as well as similar spectral signatures. The results observed suggest a millimeter-wave based approach for arterial pulse detection is very promising for future applications in pulse wave analysis and pulse transit time measurement for blood pressure tracking.

引用

页码：1525 / 1534

页数：10

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