公开(公告)号：WO2022129319A1

公开(公告)日：2022-06-23

申请号：PCT/EP2021/086166

申请日：2021-12-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： LAI, Marco ,  DICORATO, Claudio ,  VERBAKEL, Frank ,  LUCASSEN, Gerhardus, Wilhelmus ,  DE WILD, Nico, Maris, Adriaan ,  NOTTEN, Marc, Godfriedus, Marie

IPC: A61B5/00

Abstract: An apparatus (and method) is for monitoring blood perfusion. A plurality of photoplethysmography, PPG, signals are acquired indicative of light detected in a region of interest of tissue at a plurality of respective locations within the region. The PPG signals are processed to determine an amplitude and preferably also a phase of each of the plurality of PPG signals, and a blood perfusion level is determined at the region of interest based on the amplitudes and preferably also the phases of the PPG signals.