Patent ID: 7496400

Claim:
A method for measuring anesthesia parameters from the head of a patient, the method comprising the steps of: providing a base element of flexible material, the base element containing an array of at least three electrodes, an optical sensor for monitoring substances in the patient's tissues, and a connector connecting the at least three electrodes and the optical sensor to a patient monitor; placing the base element on the patient's head so that a first electrode in the array of electrodes is located between the eyebrows of the patient at about the centerline of the forehead; placing the base element on the patient's head such that second and third electrodes in the array of electrodes are positioned just posterior to the lower part of the pinna and just anterior to the tragus respectively; utilizing the second and third electrodes in the array of electrodes to stimulate a facial nerve and measure neuro muscular transmission; using at least the first electrode in the array of electrodes to measure electroencephalography and muscle activity; and using the optical sensor to measure substances in the patient's tissues.