Patent ID: 11918377
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medical device comprising:
a first electrode, a second electrode, a third electrode, and a fourth electrode, each of the electrodes configured to be placed in contact with skin of a patient and held in position with a compressive member that is free of adhesives,
wherein the third electrode surrounds the first electrode,
wherein the fourth electrode surrounds the second electrode,
wherein the first electrode and second electrode are configured to output an impedance measurement signal,
wherein the impedance measurement signal is configured to induce a voltage on the skin of the patient, and
wherein the third electrode and the fourth electrode are configured to:
sense the induced voltage and conduct the induced voltage to circuitry configured to determine a biological impedance for the patient based on the sensed voltage from the third electrode and the fourth electrode;
sense electrocardiogram (ECG) signals from the patient via the third electrode and the fourth electrode, wherein the circuitry is configured to simultaneously sense the ECG and determine the biological impedance.