Patent ID: 7058192

Claim:
A fixation element for an implantable microphone, wherein the fixation element comprises an essentially cylindrical portion adapted to be inserted into a bore which crosses a wall of the auditory canal of a user, said cylindrical portion, at least in an implanted state of the fixation element having an axial length corresponding to the axial length of said bore, and surrounding an outer circumferential portion of a housing part of the microphone, which housing part is provided with a sound receiving member, wherein said cylindrical portion includes at least one elastic region of increased diameter that is located at least in an intermediate region of its axial length, said elastic region contacting in the implanted state of the fixation element, a wall of said bore at least in an intermediate region of its axial length and providing, by elastic restoring forces, for a friction which is sufficiently high to fix said cylindrical portion in at least one of the two axial directions of said bore; wherein said region of increased diameter is defined by at least one sealing member which is adapted to sealingly contact the wall of the bore upon said cylindrical portion having been inserted into the bore; and wherein the restoring forces of the at least one sealing member are sufficient to prevent movement of the fixation element towards the side of the wall of the auditory canal remote from the skin of the auditory canal.