Functioning
33
The removal of the ear tip is performed in the following way. Holding the nozzle
latches of OAE probe, slide the ear tip off according to Fig. 12.
Fig. 12. Correct removal of ear tip.
To avoid the break of drive latches, hold the OAE probe for the latches,
other fingers positions during the ear tip removal are not recommended!
Fig. 13. Incorrect removal of ear tip.
When the probe is inserted into an ear, its end should not be set against the wall of
the external ear canal, because it prevents from the stimulus emerge and/or OAE
registration. Such situation can be easily detected by watching the curve shape on the
stimulus panel.
To register TEOAE in newborns, it is necessary to calm a baby down and make
her/him keep quiet and calm. The external ear canal of the newborns can close during
the OAE probe insertion. To prevent it, draw of the lobe of the auricle back and down
very carefully to level the ear canal. Examine the external ear canal to make sure that
it is opened and insert the OAE probe closely. At the moment of the OAE probe
insertion it is recommended to turn the OAE probe so to direct the probe cord to the
forehead. After the insertion, rotate the OAE probe (without leaving the auricle) so to
place the probe cord under 45° to the vertex. After that, leave the auricle.
The ears of the newborns are often wet or contain the extraneous masses. If the good
stimulation was not obtained at the first insertion of a probe, replace the ear tip with
