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On-line Hearing Aid Museum |
Hearing Aids of all types—Ear
Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids,
Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing
Aids and much more! |
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Click on the "General
Information" button (top button above) for an overview and general
information on this category of hearing aid. |
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House 3M Cochlear Implant
The House 3M cochlear implant was approved by the
FDA in 1984.
The single channel speech processor used with this
implant is shown in the picture on the right. It was relatively small
measuring 3⅜” by 2” and about ⅝” thick. It used two number 401 type
mercury batteries for power and was a body worn processor.
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Click picture for larger view |
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The transmitter, which was placed over the implant
just behind the ear, sends coded signals to the implant within the
cochlea. (Implant not shown.)
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Click picture for larger view |
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The microphone uses a tie pin type fastener and
could be attached to the clothing. |
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Click picture for larger view |
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A 1.4 volt 401 mercury battery, made by
Eveready (shown at the
right) powered the processor.
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Click picture for larger view |
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(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
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