An<unk>  <unk>  is a surgically<unk> ed electronic device that provides a sense of sound to a person who is profoundly deaf, due to retrocochlear hearing impairment (due to illness or injury damaging the cochlea or<unk>  nerve, and so precluding the use of a cochlear<unk> . In Europe,<unk> s have been used in children and adults, and in patients with neurofibromatosis type II.
Auditory brainstem implant
Vibroacoustic therapy
Totally implantable cochlear implant
Audio therapy
Direct acoustic cochlear implant
Bone-anchored hearing aid
Cochlear implant
Middle ear implant