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:
Apr. 14, 2026
Filed:
Dec. 07, 2021
Koninklijke Philips N.v., Eindhoven, NL;
Willem Verkruijsse, Veldhoven, NL;
Mark Josephus Henricus Van Gastel, Tilburg, NL;
Age Jochem Van Dalfsen, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The present invention relates to a device (), systems (″) and a method for providing imaging of one or more aspects of blood perfusion induced by cardiac induced blood motion in a skin region () of a subject. Current perfusion imaging systems use either photoplethysmography (PPG) or speckle contrast (SC), but a problem of both techniques is that considerable ambiguity exists because the source of the signal (volume pulsatility in PPG or blood flow in SC) is unknown. The present invention is based on the idea of combining two different types of measurement, namely widefield imaging and radial imaging, in order to estimate the source depth () of the signal to provide more accurate PPG imaging and SC imaging.