Yue-Der LIN,Ching Che TSAI,Hu Ying HO,Shih Fan WANG,Kang Ping LIN,Hen Hong CHANG,Yung Ching CHANG
申请号：
US13307883
公开号：
US20130046192A1
申请日:
2011.11.30
申请国别(地区):
US
年份:
2013
代理人:
摘要：
An image-based PWV measurement device and method are provided. The measurement device comprises at least two light emitting units respectively projecting light beams to at least two detected regions on body surface at least two light transmitting units respectively receiving and transmitting light signals measured at the different detected regions an image sensing unit converting the light signals measured at the detected regions into image signals a length measurement unit used to measure the distance between the detected regions and an image analysis unit analyzing the image signals to obtain PPG signals for the detected regions. According to the PPG signals, the image analysis unit calculates the physiological parameters, including the perfusion index, respiration rate, pulse rate, stiffness index, reflection index, and PWV between the detected regions, which is derived according to the distance and the pulse transit time from the PPG signals of the two detected regions.
