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How bone conduction hearing systems work

writer:admin pubdate:2016-12-07 21:43 view:()

Bone anchored hearing systems are designed to use your body’s natural ability to transfer sound through bone conduction. The sound processor converts sounds into vibrations which are then sent through your skull bone, directly to your inner ear.
A bone anchored hearing system consists of three parts: 
1.A small (3 or 4 mm) titanium implant that sits in the bone behind the ear 
2.An abutment that is seamlessly placed through the skin enabling the sound processor to be attached
3.A sound processor that sits discreetly behind the ear
The small titanium implant                 The abutment without sound processor                           The sound processor on the abutment
How bone conduction works
The sound processor clicks easily onto the abutment. Once attached, it picks up sound waves in much the same way as a conventional hearing aid. However, instead of sending these sound waves through the ear canal, it transforms them into sound vibrations, ready to send through your skull bone. Thanks to the direct connection between the sound processor and the bone through the implant and abutment, your skin does not dampen the sound vibrations, which gives a clearer sound.
When you click off the sound processor, for example when showering or sleeping, no sound vibrations are sent and your hearing will return to its original state.
The Ponto System is an example of Direct Sound Transmission. This provides the best amplification and output, as compared to skin drive systems, where the skin creates a dampening layer between the sound processor and the bone. 
The procedure
Getting a bone anchored hearing system is a well-proven, safe and relatively simple process, often done under local anesthetic. With the new Minimally Invasive Ponto Surgery, a small incision is made corresponding exactly to the size of the implant and the abutment. This removes the need for suturing, which means even less time in surgery. The MIPS procedure also reduces scarring and shortens healing time.
Furthermore, if you decide bone anchored hearing is not right for you, the procedure is reversible.
Who can benefit from a bone anchored hearing system?
If your hearing loss is due to problems in your outer or middle ear, talk to your hearing care professional about bone anchored devices. Specifically designed to bypass any problems in the ear canal or middle ear, these devices can offer you far clearer, more comfortable hearing.
Ear canal & middle ear problems like microtia and atresia  
Singled sided deafness

Source: Oticon Medical 

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