A bone-anchored hearing aid (aka BAHA) is a surgically implanted device designed to help individuals with certain types of hearing loss. They consist of three parts: a small titanium implant (approximately 3 to 4 millimeters in diameter), an external connector, and a sound processor.
Bone-anchored hearing aid manufacturers like Cochlear® offer an alternative version where a magnetic device is embedded under the skin and muscle of the skull, which then connects to the external sound processor and allows sound to be transmitted directly to the inner ear.
Unlike traditional hearing aids, which amplify sound and direct it into the ear canal, bone-anchored hearing aids bypass the outer and middle ear entirely, sending sounds directly to the cochlea.
In this article, we'll explore how a bone-anchored hearing aid works, its pros and cons, and who can benefit from this device.