Middle ear implants and other listening situations

envoy
soundbridge
carina

#1

I have been looking at the middle ear implant technology, not that I can afford it now, but maybe it will all come down in price if they get enough takers.

But the thing that seems to be missing in each case is how to listen to things that come out of localised sound sources, like stethoscopes and headphones. The Envoy at least uses your own ear as the sound source, but that also involves an actual alteration to your middle ear structure. The others have a microphone placed behind the ear. The Soundbridge has an external processor but shows no sign of having a plug available like the one for cochlear implants or Bahas. The Carina is fully implanted, and again there is no sign of being able to purchase a magnetic connection coil so that sound can be filtered into the device.

So, good start and I am guessing most candidates will not be keen to plug in anything visible, but there are so many devices which use the natural ear, how does it work with these devices to receive your amplification from headphones and things?


#2

For stethoscopes and headphones, the Esteem will work very well since it uses the natural anatomy (eardrum) of the ear as the microphone. The Maxum uses an in-the-canal processor which has the microphone in the ear canal so it can work with headphones. Devices with microphones outside the ear canal do require modified headphones that center the headphone speaker over the microphone, or jacks to connect the input sound to the processor, or a wireless connection such as bluetooth.


#3

The Esteem is only effective if the cochlea is is good.