Daniel Morris,T. Scott Saponas,Desney S. Tan,Morgan Dixon,Siddharth Khullar,Harshvardhan Vathsangam
申请号：
US13783395
公开号：
US09504391B2
申请日:
2013.03.04
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A system and method to determine pulse transit time using a handheld device. The method includes generating an electrocardiogram (EKG) for a user of the handheld device. Two portions of the users body are in contact with two contact points of the handheld device. The method also includes de-noising the EKG to identify a start time when a blood pulse leaves a heart of the user. The method further includes de-noising a plurality of video images of the user to identify a pressure wave indicating an arterial site and a time when the pressure wave appears. Additionally, the method includes determining the PTT based on the de-noised EKG and the de-noised video images.
