Incorporated to a finger grip device are an oximeter that measures the SpO2 of the patient and a fingerprint sensor for sensing the fingerprint of the finger from which the SpO2 is measured. The sensed fingerprint is used to identify the patient. By thus establishing the identity of the patient, the...http://www.google.es/patents/US6643531?utm_source=gb-gplus-sharePatente US6643531 - Combination fingerprint and oximetry device
