Bone Conduction Hearing Aids and How They Differ from Air Conducting Types
Hearing Loss from Best Hearing Aids
Bone conduction hearing aids can help certain types of hearing loss, and are often of help in the case of kids. Others who also benefit particularly from this kind of hearing aid are those who have transient hearing loss.
This could be caused by physical damage, blockage, infection or eczema. Conventional hearing aids take sounds from outside of the ear, and then amplify this sound and play it back to the inner ear. There are newly developed hearing aids known as bone conduction hearing aids, these work far differently to the conventional hearing aids.
Conventional external hearing aids can be usually separated into two types into air conduction hearing aids and bone conduction hearing aids.
Air conduction hearing aids require the employment of ear molds, that might be problematic in patients with persistent middle ear and ear canal infections, atresia of the outer canal, or an ear canal that can’t allow entry of an ear mold.
As a result a new type of hearing help has been developed namely the bone conduction hearing aid, and use an oscillator. It picks up sounds from the outside of the ear and introduces vibratory motions onto the bone of the head.
This is a signal that’s picked up by the inner ear. There is massive difference between Bone Conduction Hearing Aids and other models available today on the market. Both take the sound from outside the ear. However, a conventional model amplifies the sound within the middle ear, in the ear mould. The inner ear then receives the sounds from the ear mold. The Bone Conductor Hearing help is dissimilar.
It transmits the signal picked up outside the ear, directly to the oscillator. The oscillator vibrates against the skull which the inner ear recognizes as sound. though the Bone Conduction Hearing aid is not as efficient as the other hearing aids available, but it’s great for those whose condition is less than suitable for the regular kind of aid.
In these patients, bone conduction hearing aids could be an alternative. External bone conduction hearing aids function by broadcasting sound waves thru the bone to the ossicles of the middle ear. The external devices must be closely applied to the temporal bone, with either a steel spring over the top of the head or with the utilization of a spring-loaded arm on a pair of glasses.
In these patients, a bone-anchored device located close to the deaf ear works as a transcranial contralateral routing of signal ( CROS ) to broadcast sound to the contralateral functional cochlea thru bone conduction.
Hard headbands for bone conduction hearing aids have given problems. There are one or two options for bone conduction headbands for bone conduction hearing aids. If cosmetics are the main problem, some elders have stitched the headband into a favorite hat ( that frequently helps with comfort too ).
Girls can use butterfly clips both to embellish and to anchor the headband in their hair. Some children use sports headbands. Make a slit on the inside only of one side and run the wire through the headband to a matching slit on the other side, just above the ear.
Also don’t forget that the oscillator must at once contact the skin and must be attached in such a manner that nothing comes between the oscillator and the skin. Frequently just the fit of the headband will achieve this but if not velcro should be attached to the back of the oscillator.
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