Bone Anchored Hearing Aids

The external bone conduction hearing aid

When there are deformities of the ear a hearing aid and bone conduction can be used in conjuction. Sometimes when there is a partial or total blockage in the ear canal, the hearing aid cannot sit correctly, which affects its efficiency. The blocked ear needs to be fitted with an oscillator behind the mastoid bone and this provides cranial vibration. A microphone receives the sound and then converts it to vibration, which can be picked up by the oscillator, which vibrates to the amplitude and frequency of the input sound.

The Bone anchored hearing aid (BAHA)

The bone-anchored hearing aid (BAHA) works on the same principles as the external bone anchored hearing aid. Though it has a more direct approach to vibrating the skull, it is actually attached to the mastoid bone, which is  connected directly to the oscillator. The skin is capable of absorbing the vibration and this makes the transmission much clearer, which increases the power of the cochlear to receive the sounds.

Bones do not transmit high frequency sounds well, but because the skin does the frequency range is broadened.  The increased range brings it to 15 dB and all human speech falls within this range so it is a very effective way  of hearing. The main disadvantage is that it does have to be surgically installed and it does leave a bolt sticking out of the neck.

Bone conduction can be used in conjunction with air conduction to create a more complete and fuller sound. However, the main advantage of bone conduction is the sound itself  is coming from the skull rather than an external source, and this means that the sound is not complicated with external noise distractions.

If you are interested in trying an Invisible Hearing Aid, why not use our  ‘Try before you buy’ service, which means you can make sure you are entirely happy with your Digital Hearing Aid before you spend any money!

So, call us now or complete an online form, to arrange a FREE Hearing Test

Why Are We The Best?

We will come to your home, ensuring maximum comfort and convenience but with the same degree of quality and professionalism.
Try any of our hearing aids before you buy to make sure you receive the hearing aid perfect for your specific requirements.
We are brand independent and can supply over 1000 models, meaning that we are able to supply you with the most state-of-the-art hearing aids.
We operate at the highest standards and have a wealth of experience, bringing expertise you can trust to your door.
We supply lifetime aftercare with all of our hearing aids, with regular evaluation of you aural health also freely included.
Operating for almost 100 years we have consistently stayed up-to-date and at the top of our field.