Subcutaneous and Continuous Blood Pressure Monitoring by PMUTs in an Ambulatory Sheep

Yande Peng,Hong Ding,Liwei Lin,Sedat Pala,Zhichun Shao,Jin Xie

doi:10.1109/mems51670.2022.9699550

Subcutaneous and Continuous Blood Pressure Monitoring by PMUTs in an Ambulatory Sheep

Yande Peng, Hong Ding + Show 4 more

https://doi.org/10.1109/mems51670.2022.9699550

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Publication Date: Jan 9, 2022

Citations: 6

Affiliation: University of California, San Diego, Berkeley Geochronology Center, University of California, Berkeley, Zhejiang University

#Continuous Blood Pressure Monitoring #Piezoelectric Micromachined Ultrasonic Transducers + Show 8 more

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Abstract

This paper reports a subcutaneous blood pressure (BP) monitoring system with AlN-based, piezoelectric micromachined ultrasonic transducers (PMUTs) on an ambulatory sheep. Compared to the state-of-art, three distinctive achievements have been demonstrated: (1) precision and continuous measurements of the blood pressure from the diameter changes of blood vessels as small as 2.3 μm by means of ultrasonic detections; (2) experimental validations in both in vitro artery models and an acute animal study; and (3) the first continuous and silent blood pressure monitoring system without a cuff toward a fully implantable system based on MEMS technologies.

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