MED-EL SAMBA 2, User Manual, Page: 7 / 72

General information
5
3. General information
Device description
The Bonebridge system consists of two major components: the osseointegrated implant,
called Bonebridge Bone Conduction Implant (BCI), and the externally worn audio processor.
The externally worn audio processor is attached to the user’s head, behind the ear. A
magnet in the audio processor is attracted to an opposing magnet within the implant. The
audio processor includes two microphones to pick up sound from the environment, sound
processing circuitry to modify the output signal to the user’s specific requirements, and a
digital compression processor. The device is powered by a single 675 zinc-air battery. The
Bonebridge system is activated by simply fitting the audio processor. The audio processor is
intended for the home use environment.
The implanted part of the Bonebridge system consists of the internal coil and the Bone
Conduction – Floating Mass Transducer (BC-FMT). A signal from the audio processor is
transferred across the skin to the internal coil. The internal coil then relays the signal to
the BC-FMT. The BC-FMT converts the signal into vibrations, which are interpreted by the
user as sound. The implanted portion of the Bonebridge system is not operated directly
and has no specific maintenance requirements. The user does, however, have operation
and maintenance responsibilities for the audio processor and its accessories.