公开(公告)号：US20180110423A1

公开(公告)日：2018-04-26

申请号：US15565969

申请日：2016-04-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Cristian Nicolae Presura ,  Lisa Opstal ,  Francesco Sartor ,  Calina Ciuhu

IPC: A61B5/026 ,  A61B5/00 ,  A61B5/0205

CPC classification number: A61B5/0261 ,  A61B5/02055 ,  A61B5/02427 ,  A61B5/02433 ,  A61B5/02438 ,  A61B5/6843 ,  A61B5/721 ,  A61B5/7214 ,  A61B5/746 ,  A61B2562/0219 ,  A61B2562/0238 ,  A61B2562/0242 ,  A61B2562/04

Abstract: The invention relates to an optical sensor device (1) for determining a blood perfusion parameter of a user. A light source (2) provides coherent light for scattering in a tissue sample (11) and a light detection unit (3) receives scattered coherent light in a re-emission geometry, the light detection unit (3) comprising plural light detection elements (32a; 32b) for capturing light intensity values in increasing distances from the light source (2) in accordance with different tissue depths. An evaluation unit (10) determines contrast values based on the captured light intensities, determines one motion-corrected value of the blood perfusion parameter based on the contrast values associated with the different tissue depths. Moreover, the invention relates to a method determining at least one blood perfusion parameter using the sensor device (1).