1. Cochlear "Nucleus": Australian brand, where they're doing this "Gene-Therapy" research. There are also different models - so how does one choose? Drs do. (Lose all residual hearing after implant w/ other possible irreversible outcomes).
2. Advanced Bionics: American brand (again, likely to lose all residual hearing).
3. Med-El: Austrian brand. The only cochlear implant w/ facts to preserve residual hearing, as the electrodes are of a "flexible" material vs hard metal electrodes of the other two.
They are NOT for tinnitus. Sure, some cases...lo and behold it suppressed some, who had a bit of "T", however main reason for CIs are for those who do NOT benefit at all from hearing aids. Once implanted, it is VERY difficult to get a MRI scan, means only the radiation CTscans. Also, one CANNOT have any other electrical current therapy for tinnitus, facials or what-not.
Australia research quote: "There are different types of hearing loss and it depends on which part of the path between the brain and the ear is damaged. People with cochlear implants have the damage in the cochlea."
They did not disclose about them also implanting children with OTHER inner-ear deformities (100k to taxpayers), dysfunctional auditory nerve, cochlea asplasia etc. that often have poor results = Great research, grant experiments!! These poor patients react from CIs as if one is sitting in a quiet room and someone said "Blech! Bloop!" You jump right? (Parents misinterpret this to true hearing when their babies are startled. However, they often become frustrated later when their child is not developing oral language as expected (those w/ congenital issues).
Many people have inquired for info. CI companies will NOT provide statistics-data of success rate from implanted patients of OTHER inner-ear deformities, only of those who do succeed. (Great marketing ploy- just like those weight-loss supplements on TV). They'll throw-out a percentage. I'd stick with waiting to regrow "gene-therapy" cilia hairs without a CI for tinnitus/hyperacusis. If you can wear an aid(s) or a device and get an experienced professional in the field of "Tinnitus Therapy" to adjust them for "masking", is the SAFEST method so far.