Ravi Narasimhan,Zijing Zeng,Richard C. Kimoto,Erno Klaassen,Thomas J. Sullivan,Derek Park-Shing Young,Todd K. Whitehurst
申请号：
US15507659
公开号：
US20170360306A1
申请日:
2015.09.08
申请国别(地区):
US
年份:
2017
代理人:
摘要：
The present invention generally relates to blood pressure monitoring. In some embodiments, methods and devices of measuring a mean arterial pressure are provided and/or monitoring blood pressure changes. A wrist-worn device may include a plurality of sensors backed by a plurality of actuators. Subsets of the plurality of sensors may be selectively actuateable against a wrist of a user using one or more of the plurality of actuators. A preferred sensor and location may be identified based on pressure signals received from each of the sensors. In some embodiments, devices may use a fluid bladder coupled with piezoelectric film sensors. A fluid bladder pressure sensor may be used to calibrate the piezoelectric film signal to provide a static and dynamic pressure reading. In yet another embodiment, a mean arterial pressure may be calculated by processing a swept pressure signal obtained as a sensor is swept through different heights.
