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Devices and Methods for Monitoring Directional Blood Flow and Pulse Wave Velocity with Photoplethysmography
Devices and Methods for Monitoring Directional Blood Flow and Pulse Wave Velocity with Photoplethysmography
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机译:用光体积描记法监测定向血流和脉搏波速度的装置和方法
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摘要
Provided according to embodiments of the invention are methods of monitoring the direction of blood flow that include processing with a computer photoplethysmography (PPG) signal streams from a sensor array on a body site of the individual to determine the direction and/or velocity of the blood flow at the body site of the individual. In some embodiments, direction of the blood flow at the body site is determined by the phase difference between at least three PPG signal streams from the sensor array, wherein the at least three PPG signal streams are generated from emissions of the at least three emitters.
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