FIXATION ELEMENT FOR AN IMPLANTABLE MICROPHONE

摘要

Fixation element (20) for an implantable microphone (10) having a cylindrical housing part (14) provided with acoustic inlet membrane (13) that can be inserte d into a hole (28) which crosses a rear bony wall (29) of the auditory canal. The fixat ion element (20) has a cylindrical sleeve part which surrounds the cylindrical housi ng part of the microphone and which has projecting, elastic flange parts (23) which can be placed against side (33) of the wall of the auditory canal which faces skin (30) of the auditory canal. In use, the elastic flange parts are held in a bent position aga inst an elastic restoring force of the flange parts, before implantation, by applying a holder to the flange parts which allows insertion of the flanges through the hole of the w all of the auditory canal, and after the microphone assembly has been inserted through the hole, the holder (which can be, for example, thread or a cap), is removed allowing the elastic flange parts to spring into a position in which they project essentially radiall y away from the cylindrical sleeve part between the wall of the auditory canal which fa ces skin of the auditory canal and the skin of the auditory canal.