A Conductive Hearing loss is said to be present when sounds are restricted or blocked through the outer or middle ear. Excessive wax is also a type of conductive hearing loss, but can be treated by visiting your Doctor or Nurse.
Bone conduction hearing aids work by sending signals directly through the bone behind the ear (mastoid process) to the inner ear or Cochlea. The signals are sent via a receiver which is attached to the bone of the skull. If you wear glasses these aids can be attached to the arms of specially made glasses but are not always practical for many people, as they require a firm fixing to the bone in order to provide a clear sound.
They can also be worn on a band, (Alice band) around the head with wires attached to a box or microphone.
In some cases bone conduction hearing aids can be fitted by a surgical procedure, this is when a metal plate is fitted to the bone behind the ear and works as an anchor for magnetic aids. These aids are generally referred to as baha or bone anchored hearing aids.
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