The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Dec. 16, 2021
Koninklijke Philips N.v., Eindhoven, NL;
Marco Lai, Eindhoven, NL;
Claudio Dicorato, Milan, IT;
Frank Verbakel, Helmond, NL;
Gerhardus Wilhelmus Lucassen, Eindhoven, NL;
Nico Maris Adriaan De Wild, Eindhoven, NL;
Marc Godfriedus Marie Notten, Elsloo, NL;
Koninklijke Philips N.V., Eindhoven, NL;
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.