US 11,717,177 B2
Blood pressure measurement
Rana Sadeghi Chegani, Coquitlam (CA); Yan Vule, Port Moody (CA); Kongqiao Wang, Anhui (CN); Artem Galeev, Vancouver (CA); and Yoav Aminov, Tel Aviv (IL)
Assigned to BELING SHUNYUAN KAIHUA TECHNOLOGY LIMITED, Beijing (CN)
Filed by BEIJING SHUNYUAN KAIHUA TECHNOLOGY LIMITED, Beijing (CN)
Filed on May 15, 2020, as Appl. No. 16/875,135.
Prior Publication US 2021/0353164 A1, Nov. 18, 2021
Int. Cl. G06F 11/30 (2006.01); A61B 5/021 (2006.01); A61B 5/00 (2006.01); G06N 20/00 (2019.01); A61B 5/0285 (2006.01)
CPC A61B 5/02125 (2013.01) [A61B 5/0285 (2013.01); A61B 5/681 (2013.01); A61B 5/7221 (2013.01); A61B 5/7267 (2013.01); G06N 20/00 (2019.01)] 19 Claims
OG exemplary drawing
 
1. A wearable device for estimating a blood pressure of a user, comprising:
one or more sensors configured to measure characteristics related to the blood pressure of the user;
a memory; and
a processor, the processor configured to execute instructions stored in the memory to:
receive the first sensor data from the one or more sensors;
process the first sensor data to obtain, for a first time point, first features;
receive second sensor data from the one or more sensors;
obtain respective intermediate features at intermediate time points subsequent to the first time point by processing the second sensor data;
obtain final features at a final time point subsequent to the intermediate time points;
obtain feature differences from the first features, at least some of the respective intermediate features, and the final features;
obtain, for the feature differences, respective blood pressure difference estimates;
select, from the respective blood pressure difference estimates, a first subset of first blood pressure difference estimates that form a first path from the first time point to the final time point;
combine, to obtain a first blood pressure difference between the first time point and the final time point, the first blood pressure difference estimates of the first subset of the first blood pressure difference estimates; and
determine a blood pressure of the user for the final time point based on the first blood pressure difference between the first time point and the final time point.