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When fitting a client with an IIC (Invisible In Canal), it is im-
portant to point out that making a good earmould or shell
is work of high precision.
Each ear canal is individual, and an accurate impression
must be taken in order to collect the data on which the
shell production can be based.
It is especially important to take an impression that is long
enough. Which in most cases mean an impression “Well
past the second bend”. An impression that is not long
enough can make it impossible for CAMISHA to make the
requested IIC solution.
The following pages are intended as a guide to how to take
a deep impression for an IIC hearing aid.
CIC
IIC
CIC vs IIC
The shell of the IIC houses the amplifier circuits, receiver
and battery drawer. These parts are placed in the loca-
tions shown, and the ear canal therefore needs to be wide
enough and long enough to accommodate an IIC hearing
aid.
