The method of the invention comprises the following steps: during the disinfection (A) of the apparatus, recording (1) with an acquisition and processing system the disinfection date and data relative to the apparatus disinfection type and level together with identification information of said apparatus during the use (C) of the apparatus on a patient, recording (5) with said system the date and information concerning the apparatus type of use and the patient together with identification information of said apparatus sequencing with the acquisition and processing system the information on the disinfection and use on a patient together with identification information of said apparatus before each use, developing using the acquisition and processing system an instruction allowing or forbidding (6) the use of the apparatus based on the sequencing.