Thomas J. Sullivan,Wren Nancy Dougherty,Richard C. Kimoto,Erno Klaassen,Ravi Narasimhan,Stephen J. Waydo,Todd K. Whitehurst,Derek Park-Shing Young,Santiago Quijano,Zijing Zeng
申请号：
US15681024
公开号：
US20170340219A1
申请日:
2017.08.18
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Wrist-worn devices and related methods measure a pulse transit time non-invasively and calculate a blood pressure value using the pulse transit time. A wrist-worn device include a wrist-worn elongate band, at least four EKG or ICG electrodes coupled to the wrist-worn device for detecting a ventricular ejection of a heart, a photo-plethysmogram (PPG) sensor coupled to the wrist-worn device for detecting arrival of a blood pressure pulse at the user's wrist, and a controller configured to calculate a pulse transit time (PTT) for the blood pressure pulse. The controller calculates one or more blood pressure values for the user based on the PTT.
