US Patent Issued to Koninklijke Philips on Sept. 16 for "Photoplethysmography pulse oximeter for cardiopulmonary resuscitation" (Dutch, German Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,716, issued on Sept. 16, was assigned to Koninklijke Philips N.V. (Eindhoven, Netherlands).

"Photoplethysmography pulse oximeter for cardiopulmonary resuscitation" was invented by Jens Muehlsteff (Aachen, Germany) and Ralph Wilhelm Christianus Gemma Rosa Wijshoff (Eindhoven, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A PPG pulse oximeter employing a dual PPG probe including a central PPG sensor and a peripheral PPG sensor connectable in a circuit configuration with a pulse oximeter monitor. In operation, the pulse oximeter monitor controls synchronous generations of a central PPG signal by the central PPG sensor and of a peripheral ...