A<unk>  - also DACI - is an<unk><unk>  which converts sound in mechanical vibrations that stimulate<unk> ly the perilymph inside the<unk>  The hearing function of the external and middle ear is being taken over by a little motor of a<unk><unk> ,<unk> ly stimulating the<unk>  With a DACI, people with no or almost no residual hearing but with a still functioning inner ear, can again perceive speech, sounds and music. DACI is an official product category, as indicated by the nomenclature of GMDN. A DACI tries to provide an answer for people with hearing problems for which no solution exists today. People with some problems at the level of the<unk> can be helped with a hearing aid. A hearing aid will absorb the incoming sound from a microphone, and offer enhanced through the natural way. For larger reinforcements, this may cause problems with feedback and distortion. A hearing aid also simply provides more loudness, no more resolution. Users will view this often as, "all sounds louder, but I understand nothing more than before." Once a hearing aid offers no solution anymore, one can switch to a<unk><unk> . A<unk><unk>  captures the sound and sends it electrically, through the<unk>  to the auditory nerve. In this way, completely deaf patients can perceive sounds again. However, As soon as there are problems not only at the level of the<unk>  but also in the middle ear (the so-called conductive losses), then there are more efficient ways to get sound to the partially functioning<unk>  The most obvious solution is a BAHA, which brings the sound to the<unk> via bone conduction. However, patients who have both problems with the<unk>  as with the middle ear (i.e. patients with mixed losses), none of the above solutions is ideal. To this end, the<unk>  was developed. A DACI brings the sound<unk> ly to the<unk>  and provides the most natural way of sound amplification.
Direct acoustic cochlear implant
Totally implantable cochlear implant
Middle ear implant
Cochlear implant
Auditory brainstem implant
Bone-anchored hearing aid
Vibroacoustic therapy
Brain implant