US 12,453,486 B2
Apparatus, methods and computer programs for determining pulse wave velocity
Harri Lindholm, Helsinki (FI); and Tapio Taipalus, Espoo (FI)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/269,298
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Jul. 30, 2019, PCT No. PCT/EP2019/070408
§ 371(c)(1), (2) Date Feb. 18, 2021,
PCT Pub. No. WO2020/038689, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 18190191 (EP), filed on Aug. 22, 2018.
Prior Publication US 2021/0177285 A1, Jun. 17, 2021
Int. Cl. A61B 5/00 (2006.01); A61B 5/0285 (2006.01); A61B 5/11 (2006.01)
CPC A61B 5/0285 (2013.01) [A61B 5/1102 (2013.01); A61B 5/6891 (2013.01); A61B 5/702 (2013.01); A61B 5/7278 (2013.01); A61B 2562/0219 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processor; and
at least one memory storing instructions, that when executed by the at least one processor, cause the apparatus at least to:
receive from one or more sensors associated with a subject sitting in a chair, signals comprising a first ballistocardiograph signal and a second ballistocardiograph signal of an arterial system of the subject, wherein the signals are indicative of a pulse wave having a pulse velocity that is travelling in a first direction at a first time and in a second direction at a second time, and wherein the second direction is, at least in part, perpendicular to the first direction;
process the first ballistocardiograph signal and the second ballistocardiograph signal to remove artefacts and noise created by motion of the subject; and
determine the pulse wave velocity based on a processed at least one of the first ballistocardiograph signal and the second ballistocardiograph signal.