ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,543,978, issued on Feb. 10, was assigned to MASIMO Corp. (Irvine, Calif.).

"Pulse oximetry system with electrical decoupling circuitry" was invented by Valery G. Telfort (Irvine, Calif.), Ammar Al-Ali (San Juan Capistrano, Calif.), Paul Martek (Pierrefonds, Canada) and Robert A. Smith (Lake Forest, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pulse oximetry system for reducing the risk of electric shock to a medical patient can include physiological sensors, at least one of which has a light emitter that can impinge light on body tissue of a living patient and a detector responsive to the light after attenuation by the body tissue. The detect...