Subcutaneous and Continuous Blood Pressure Monitoring by PMUTs in an Ambulatory Sheep
Yande Peng, Sedat Pala, Zhichun Shao, Hong Ding, Jin Xie, Liwei Lin
20222022 IEEE 35th International Conference on Micro Electro Mechanical Systems Conference (MEMS)14 citationsDOI
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.
Topics & Concepts
Ultrasonic sensorMaterials scienceBiomedical engineeringBlood pressureAmbulatory blood pressureAmbulatoryContinuous monitoringPressure sensorRemote patient monitoringCuffPressure measurementCardiologyAcousticsMedicineInternal medicineSurgeryRadiologyEngineeringMechanical engineeringOperations managementPhysicsNon-Invasive Vital Sign MonitoringCardiovascular Health and Disease PreventionHeart Rate Variability and Autonomic Control