Implantable medical device

Abstract

The invention relates to a medical device comprising: —a sealed casing (), suited to being implanted in the body of a human or animal patient, —an inflatable element (), —a fluidic circuit comprising a fluid reservoir () having a variable fluid volume and arranged inside the casing with a tube () between the reservoir and the inflatable element, —an actuator arranged inside the casing to selectively vary the volume of fluid in the reservoir, —a control unit () configured to control the actuator, —at least one sensor suited to measuring an absolute gauge pressure of the fluid in the fluidic circuit, a force exerted on the reservoir, a gas pressure inside the casing, an atmospheric pressure or a value relating to an altitude of the patient, the control unit () being configured so as: —on the basis of a measurement from said sensor while the actuator is inactive, to detect a differential between a value relating to an altitude of the patient and a reference value, and —as a function of said differential, to determine the command to be issued to the actuator so as to control the pressure of fluid in the fluidic circuit.