CSEM PPG Method Reduces Venous Pulsatility for Diagnosis
Summary
CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement has been granted European Patent EP3991641A1 for a method of determining physiological parameters using photoplethysmography (PPG) signals with reduced venous pulsatility influence. The patent was published on April 15, 2026 and names four inventors: Martin Proença, Philippe Renevey, Damien Ferrario, and Guillaume Bonnier. The invention applies to medical diagnostic applications including cardiovascular monitoring where venous pulsatility artifacts can interfere with accurate physiological measurements. The designation covers 27 EU member states.
“METHOD FOR DETERMINING A PHYSIOLOGICAL PARAMETER USING A PPG SIGNAL WITH REDUCED INFLUENCE OF VENOUS PULSATILITY”
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GovPing monitors EPO Patent Bulletin - Diagnosis & Surgery (A61B) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 66 changes logged to date.
What changed
The European Patent Office has granted EP3991641A1 to CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement for a PPG-based method that reduces the influence of venous pulsatility when determining physiological parameters. The patent, with IPC classifications A61B 5/00, A61B 5/026, and A61B 5/1455, names four inventors and designates 27 EU member states. Medical device manufacturers developing PPG-based monitoring products should evaluate whether their signal processing methods fall within the scope of this patent and consider licensing or design-arounds for market access in Europe.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
METHOD FOR DETERMINING A PHYSIOLOGICAL PARAMETER USING A PPG SIGNAL WITH REDUCED INFLUENCE OF VENOUS PULSATILITY
Publication EP3991641A1 Kind: A1 Apr 15, 2026
Applicants
CSEM Centre Suisse d'Electronique et de
Microtechnique SA - Recherche et Développement
Inventors
Proença, Martin, Renevey, Philippe, Ferrario, Damien, Bonnier, Guillaume
IPC Classifications
A61B 5/00 20060101AFI20260311BHEP A61B 5/026 20060101ALI20260311BHEP A61B 5/1455 20060101ALN20260311BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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