Fuente: Wipo "digitalization" An optical digit probe for noninvasive measurement of at least one physiological parameter of a patient includes a digit housing having an external digit housing surface and an internal digit housing surface. A proximal end of the digit housing is adapted for facilitating insertion of a digit of a patient into the digit housing. The optical digit probe also includes an attachment device including a housing fastening portion connected to the external digit housing surface of the digit housing and a skin securement portion extending from the housing fastening portion configured to releasably couple the attachment device to a skin surface of the patient. The optical digit probe also includes at least one optical sensor disposed in the digit housing configured to be positioned proximate to the digit of the patient to provide optical signals reflecting the at least one physiological parameter of the patient.