The present invention concerns an actuating device for actuating a mechanical adjustment element of surgical implant, said mechanical adjustment element allowing to modify the functional shape and/or the functional size of the surgical implant when actuated, said actuating device comprising transmission means linked with one end to the mechanical adjustment element and able to move the mechanical adjustment element when said transmission means are actuated, connecting means (7) mounted on the other end of the transmission means and able to actuate the transmission means, said connecting means (7) comprising coupling means and driving means (24) comprising complementary shaped coupling means, said driving means (24) being designed to be removable and fitted into the coupling means for moving the mechanical adjustment element by driving into movement a movable part of the connecting means (7).
