Actuating device for mechanical adjustment element of surgical implant

An actuating device for actuating a mechanical adjustment element of a surgical implant, said mechanical adjustment element allowing to modify at least one of a functional shape and a functional size of the surgical implant when actuated, wherein said actuating device comprises:

• transmission means in the form of a cable or a hydraulic, configured to be linked with one end to the mechanical adjustment element and able to move the mechanical adjustment element when said transmission means is actuated,
• connecting means mounted on the other end of the transmission means and able to actuate the transmission means, said connecting means comprising coupling means, and
• driving means comprising complementary shaped coupling means, said driving means being designed to be removable and fitted into the coupling means of the connecting means for moving the mechanical adjustment element by driving into movement a movable part of the connecting means,
• wherein the transmission means comprise at least one cable configured to link the mechanical adjustment element to the connecting means,
• the connecting means comprise a housing frame which includes a pulley for at least one of selected winding up and unwinding the cable and setting the mechanical adjustment element into movement when said pulley is driven into rotation, and
• the coupling means comprise a polygonal shaped connecting hole in a center of a rotating connecting element and at least two additional connecting holes in the housing frame on opposite locations with respect of the polygonal shaped connecting hole, said complementary shaped coupling means comprising a polygonal shaped pin and at least two additional pins on opposite locations with respect of the polygonal shaped pin, and said driving means being designed to set into a relative rotation in the polygonal shaped in and the additional pins.