Patent ID: 8184840

Claim:
A combined set comprising a vibration actuator and an implantable device provided to be implanted in an inner ear part formed by either a bony wall, an oval window, or a round window, said implantable device comprising: a surface in contact with an inner ear fluid when inserted in said inner ear part, a frame having an inner wall and being provided to be at least partially inserted in said inner ear part, a slidably movable member having an outer wall and being connected to said vibration actuator, said slidably movable member being provided for transferring energy supplied by said vibration actuator from and towards said inner ear fluid by means of a translational movement, wherein said slidably movable member is at least partially mounted inside said frame in such a manner, that a gap extending between said inner wall of said frame and said outer wall of said member is less than or equal to 0.1 mm.