This paper reports a subcutaneous blood pressure (BP) monitoring system with AlN-based,piezoelectric micromachined ultrasonic transducers (PMUTs) on an ambulatory sheep. Comparedto the state-of-art, three distinctive achievements have been demonstrated: (1) precision andcontinuous measurements of the blood pressure from the diameter changes of blood vessels assmall as 2.3 μm by means of ultrasonic detections; (2) experimental validations in both in vitroartery models and an acute animal study; and (3) the first continuous and silent blood pressuremonitoring system without a cuff toward a fully implantable system based on MEMS technologies.
January 9, 2022
Conference Paper (Proceedings)
Yande Peng, Sedat Pala, Zhichun Shao, Hong Ding, Jin Xie, Liwei Lin, "Subcutaneousand Continuous Blood Pressure Monitoring by PMUTS in an Ambulatory Sheep"Proceedings of the 35th IEEE Micro Electro Mechanical Systems Conference, Virtual,Jan. 2022.