CHAPTER ONE
Introduction
12
Introduction
If contamination occurs the coupler tubes must be replaced (see section
19.2
Changing probe coupler tubes
).
Visually inspect the coupler tubes before use. A blocked sound delivery
tube may prevent the Otoport from achieving its target stimulation level and
so prevent testing. It may also attenuate certain frequencies and limit the
number of pass bands. A blocked microphone tube will prevent the Otoport
from sensing the stimulus level in the ear and from detecting the OAE. As
a result the Otoport may apply a louder than normal sound to the ear.
Before inserting the probe, the ear should be inspected to ensure that
the ear canal is clean. If this precaution is not taken, the probe may be
damaged. This misuse is not covered by warranty.
All surfaces of the Otoport may be cleaned with an alcohol based wipe or
cloth with antiseptic fluid. Dry the device immediately with tissue.
Do not allow liquid to enter the instrument.
If additional hygienic protection is required, clear plastic infection control
sleeves designed to contain the Otoport during use are available from
Otodynamics.
Otodynamics does not guarantee the accuracy of the test results or the
tests themselves, if accessories other than those supplied by Otodynamics
are used.