A bone conduction implant is suitable for individuals affected by conductive hearing loss, mixed hearing loss or single-sided deafness. Because sound is transmitted to the inner ear via bone conduction, problems in the outer or middle ear are bypassed.
The Bonebridge is the world’s first active bone conduction implant on the market. It is a semi-implantable hearing implant system in which the implant is positioned completely under the intact skin. The implant receives signals from an externally worn audio processor.
The Bone Conduction Implant (BCI) is positioned completely under the intact skin and contains a magnet that holds the audio processor in place above the implant by means of magnetic attraction.
- Audio processor
The audio processor is held in position on the head by magnetic attraction and can be worn underneath the hair. It contains the battery and the microphones and is equipped with a fully digital signal processor.
How does a Bone Conduction Implant work?
Bone conduction hearing implant systems may be recommended when the natural transmission of sound to the inner ear is impeded. In bone conduction hearing systems, the cranial bones are stimulated by mechanical vibrations. These vibrations are transmitted directly to the inner ear, where they are processed like normal sound.
- The audio processor, which is held in place directly above the implant by magnetic attraction, records the sound and converts it into signals which are then transferred through the skin to the implant.
- The implant is embedded in the temporal bone and converts the signals received into mechanical vibrations, that are then transmitted to the surrounding bone.
- The bone then conducts these vibrations to the inner ear where they are converted into nerve signals and transmitted as impulses to the auditory nerve, similar to the natural hearing process.