Placement of<unk>  within<unk>  ear A<unk>  is a hearing device that is surgically implanted into the<unk>  ear. They help people with conductive, sensorineural or mixed hearing loss to hear.<unk> s work by improving the conduction of sound vibrations from the<unk>  ear to the inner ear. There are two types of<unk>  ear devices: active and passive. Active<unk> s (AMEI) consist of an external audio processor and an internal implant, which actively vibrates the structures of the<unk>  ear. Passive<unk> s (PMEIs) are sometimes known as ossicular replacement prostheses, TORPs or PORPs. They replace damaged or missing parts of the<unk>  ear, creating a bridge between the outer ear and the inner ear, so that sound vibrations can be conducted through the<unk>  ear and on to the cochlea. Unlike AMEIs, PMEIs contain no electronics and are not powered by an external source. PMEIs are the usual first-line surgical treatment for conductive hearing loss, due to their lack of external components and cost-effectiveness. However, each patient is assessed individually as to whether an AMEI or PMEI would bring more benefit. This is especially true if the patient has already had several surgeries with PMEIs.
Middle ear implant
Cochlear implant
Bone-anchored hearing aid
Facial implant
Craniofacial prosthesis
Direct acoustic cochlear implant
Vibroacoustic therapy
Craniofacial surgery