The invention concerns a medical device comprising a device for the measurement of a health parameter of a patient, a device for capturing a fingerprint identifying the patient, a device for communicating with a remote server and a control means, the control means being designed such that, when it is activated by a single action of the patient, it : activates the device for the measurement of a health parameter of the patient, and obtains a measured parameter in return, activates the fingerprint capture device and obtains a fingerprint in return, and then provides the measured parameter and the captured fingerprint to the communication device in order to transmit the measured parameter and the captured fingerprint to the remote server.