Hearing Aid

A kind of hearing aid based on bone conduction is called a Bone Anchored Hearing Aid. People suffering from unilateral hearing loss, conductive hearing loss and mixed hearing losses are best benefited by this hearing aid. In short, those who cannot wear "behind the ear" or "In the ear" hearing aids can be effective users of this particular type.

Bone anchored hearing aids employ surgically embedded abutment for transmitting sound through direct conduction inside bone unto the inner ear. This is done by passing the external ear canal as well as the middle ear. A titanium "post" is surgically implanted inside the skull by using a tiny abutment which is exposed exterior to the skin.

An auditory processor lies on the abutment and carries sound vibrations toward external abutment of titanium implant. This vibrates the inner ear and the skull, which excite the nerve fibers in the inner ear, thus allowing hearing.

Nearly everybody with permanent problems in hearing can profit by using an ordinary hearing aid. This consists of an amplifier attached behind or in the ear. Several people, nevertheless, are not able to use these gimmicks since they are earless from birth and not have the outer ear. This leaves no space to bind the hearing aid with.

The surgery involved in implanting BAHA (the acronym for bone anchored hearing aid) is mainly done only after reaching the stage of adulthood. Three to four months should be left for the purpose of Ossiointegration to take place which refers to the generation of connection between living bone and the surface of artificial implant. For children, usually a dual process is employed. In such cases, the period of Osteointegration is three to six months. After this, a surgery is performed for connecting the abutment to the fixture through the skin.

Complications are rare. If at all there are complications, they are mostly in the form of local infections, or inflammations, or sometimes the Osteointegration may fail. But these are minor complications and can be dealt with easily. BAHA is an FDA approved device for children of 5 years and above of age.

Here, it must be understood that some people cannot use them due to chronic drainage or irritation caused by these devices to the skin. This new innovation gives the user a light burden and unnoticeable option to improve the auditory sense and its quality.

Therefore, Bone Anchored Hearing Aid has proved to be a very helpful medical innovation that has successfully aided a lot of people in hearing properly.

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