Devin B. McCombie,Haruhiko H. Asada,Andrew T. Reisner
申请号：
US12408345
公开号：
US08313439B2
申请日:
2009.03.20
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An apparatus and methods for adaptive and autonomous calibration of pulse transit time measurements to obtain arterial blood pressure using arterial pressure variation. The apparatus and methods give pulse transit time (PTT) devices an ability to self-calibrate. The methods apply a distributed model with lumped parameters, and may be implemented, for example, using pulse transit time measurements derived from a wearable photoplethysmograph (PPG) sensor architecture with an intervening pressurizing mechanism.
