US 12,082,948 B2
Apparatus and method for generating blood pressure estimation model, and apparatus for estimating blood pressure
Dae Geun Jang, Yongin-si (KR); Peyman Yousefian, Quincy, MA (US); Jin-Oh Hahn, Potomac, MD (US); Ui Kun Kwon, Hwaseong-si (KR); Youn Ho Kim, Hwaseong-si (KR); and Sungtae Shin, Busan (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and University of Maryland, College Park, College Park, MD (US)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and University of Maryland, College Park, College Park, MD (US)
Filed on May 17, 2021, as Appl. No. 17/322,458.
Claims priority of provisional application 63/040,099, filed on Jun. 17, 2020.
Claims priority of application No. 10-2020-0104529 (KR), filed on Aug. 20, 2020.
Prior Publication US 2021/0393214 A1, Dec. 23, 2021
Int. Cl. A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/11 (2006.01); A61B 5/352 (2021.01); G16H 50/50 (2018.01); A61B 5/024 (2006.01); A61B 5/0245 (2006.01)
CPC A61B 5/7278 (2013.01) [A61B 5/02125 (2013.01); A61B 5/1102 (2013.01); A61B 5/352 (2021.01); A61B 5/7275 (2013.01); G16H 50/50 (2018.01); A61B 5/02416 (2013.01); A61B 5/0245 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An apparatus for monitoring a blood pressure of a user, the apparatus comprising:
a first sensor configured to measure a first signal from a user;
a second sensor configured to measure a second signal from the user;
a processor configured to obtain a pulse transit time (PTT) as a first predictor variable value based on the first signal and the second signal, configured to extract at least one feature from the second signal, configured to obtain a second predictor variable value based on the extracted at least one feature and a reference blood pressure, and configured to, by using training data comprising first signals, second signals, and reference blood pressures obtained for a plurality of users, generate a blood pressure estimation model based on the first predictor variable value and the second predictor variable value, wherein the blood pressure estimation model is used to estimate a blood pressure without a cuff; and
a display configured to display the estimated blood pressure obtained from the blood pressure estimation model,
wherein the processor is further configured to generate a predictor variable acquisition model based on the reference blood pressure, the first predictor variable value, and the at least one feature, and obtain the second predictor variable value by using the predictor variable acquisition model, and
wherein the processor is further configured to (i) generate a residual reference blood pressure by removing a component, which is related to the first predictor variable value, from the reference blood pressure, and (ii) generate the predictor variable acquisition model based on the residual reference blood pressure.