US 12,343,154 B2
Electrocardiogram waveform reconstruction from photoplethysmogram
Min Wu, Clarksville, MD (US); Qiang Zhu, College Park, MD (US); Xin Tian, College Park, MD (US); and Chau-Wai Wong, Apex, NC (US)
Assigned to UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US)
Appl. No. 17/598,083
Filed by UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US)
PCT Filed Mar. 26, 2020, PCT No. PCT/US2020/025051
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/198522, PCT Pub. Date Oct. 1, 2020.
Claims priority of provisional application 62/824,134, filed on Mar. 26, 2019.
Prior Publication US 2022/0183606 A1, Jun. 16, 2022
Int. Cl. A61B 5/352 (2021.01); A61B 5/029 (2006.01); G16H 50/30 (2018.01)
CPC A61B 5/352 (2021.01) [A61B 5/029 (2013.01); G16H 50/30 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A method for cardiovascular monitoring and analytics, comprising:
obtaining an electrical signal of a heart;
obtaining a circulatory signal related to a pulsatile volume of blood in tissue;
preprocessing the electrical signal and the circulatory signal by estimating trends from the electrical signal and the circulatory signal, and subtracting the trends from an original electrical signal and an original circulatory signal;
training a mapping using the preprocessed electrical signal and circulatory signal; and
deriving cardiovascular data based on the trained mapping of the preprocessed electrical signal or circulatory signal.