| CPC A61B 5/7285 (2013.01) [A61B 5/021 (2013.01); A61B 5/05 (2013.01); A61B 5/721 (2013.01); A61B 5/7225 (2013.01); G16H 40/67 (2018.01)] | 6 Claims |
|
1. A method for evaluating pulse wave velocity (PWV) of a user, the method comprising:
providing an RF system with a first RF sensor and a second RF sensor, each RF sensor having an antenna that transmits an incident RF signal and an antenna that senses reflected RF signals, wherein the first RF sensor and the second RF sensor are placed facing an artery of the user and spaced apart in the direction of the artery a known distance;
at each of the first RF sensor and the second RF sensor, collecting a reflected pulse signal dataset comprising signals reflected in response to signal transmission by the respective RF sensor towards the artery of the user;
generating a first delayed pulse signal dataset based on delaying the pulse signal dataset from the first RF sensor with a delay setting and generating a second delayed pulse signal dataset based on delaying the pulse dataset from the second RF sensor with the delay setting;
in response to collecting the first and second reflected pulse signal datasets and generating the first and second delayed pulse signal datasets, generating first and second detected pulse signal datasets based on the reflected signal datasets and the delayed signal datasets;
generating first and second amplitude-adjusted pulse signal datasets based on conditioning the first and second detected pulse signal datasets; and
determining a value for the pulse wave velocity of the user based on the first and second amplitude-adjusted pulse signal datasets, wherein the determined value of the pulse wave velocity is based on arterial motion of the artery and determined from a calculated change in pulse return time based on the first and second amplitude-adjusted pulse signal datasets and the known distance that the first and second RF sensors are spaced apart in the direction of the artery.
|