A device (9) for remotely monitoring at least one medical device (7) includes at least one portion (11) that vibrates when the medical device is used by a patient in order to receive a medical treatment. The monitoring device (9) includes: at least one sensor (15) intended to be in mechanical contact with the portion and suitable for detecting vibrations and for producing a primary electric or radio-electric signal (23) representing vibrations, and a local processing unit (13) suitable for receiving and extracting from the primary signal, at least one information item representing a duration of use of the medical device by the patient, and for producing at least one secondary signal (29) containing the information, the secondary signal being intended to be sent to at least one remote server (3) suitable for receiving and for extracting from the secondary signal, the information.
