公开(公告)号：US20130046192A1

公开(公告)日：2013-02-21

申请号：US13307883

申请日：2011-11-30

申请人： Yue-Der LIN ,  Ching Che TSAI ,  Hu Ying HO ,  Shih Fan WANG ,  Kang Ping LIN ,  Hen Hong CHANG ,  Yung Ching CHANG

发明人： Yue-Der LIN ,  Ching Che TSAI ,  Hu Ying HO ,  Shih Fan WANG ,  Kang Ping LIN ,  Hen Hong CHANG ,  Yung Ching CHANG

IPC分类号： A61B5/02

CPC分类号： A61B5/02007 ,  A61B5/02416 ,  A61B5/0285

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.

摘要翻译： 提供了基于图像的PWV测量装置和方法。 测量装置包括至少两个发光单元，其分别将光束投射到身体表面上的至少两个检测区域; 至少两个光发送单元分别接收和发送在不同的检测区域测量的光信号; 图像感测单元，将在检测到的区域测量的光信号转换为图像信号; 用于测量检测到的区域之间的距离的长度测量单元; 以及图像分析单元，分析图像信号以获得用于检测到的区域的PPG信号。 根据PPG信号，图像分析单元计算检测区域之间的生理参数，包括灌注指数，呼吸率，脉搏率，刚度指数，反射指数和PWV，根据距离和脉冲传递 时间来自两个检测区域的PPG信号。