ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,085, issued on Sept. 30, was assigned to PHYSIO-CONTROL INC. (Redmond, Wash.).

"Low noise measurement of impedance of a patient" was invented by David Linville (Woodinville, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A medical device for measuring an impedance of a patient or mammal when a current is applied by electrodes. The medical device includes an output that transmits a drive signal to a set of drive electrodes coupled to a patient and an input that receives a sense signal generated by a set of sensing electrodes coupled to the patient. A processor determines the impedance of the patient based on the drive signal transmitted to the...