User guide
BABYS
C
REEN
ECH001XN121-A4 – 07/2022
23
Chapter 3. ABR measurement
3.3 Patient setup
3.3
Patient setup
Classical 4 points setup
Simplified 3 points setup
•
Connect the electrophysiological cable
to the
ECHO-DIF
. Connect the
ECHO-DIF
Mini-DIN on the
AUX
con-
nector.
•
For measurement with the insert earphone, put the tip on the
left
and
right
earphones. Then, connect the ear-
phone Mini-DIN to the
«Audio»
connector of the
BABYS
C
REEN
unit.
If you have the « pediatric kit », you can use the acoustic tubes with OAE ear tips connected on the insert ear-
phone instead of the foam ear tip (the
«tube»
option must be activated on the software).
•
To make measurement with
DD45 headset
, connect the headset cable on the Jack plug of the
BABYS
C
REEN
(indicated
with the headset icon).
•
Clean the surface of the skin where the electrodes will be attached with abrasive gel. This decreases the impedance
of the skin. Depending on the contact being used, it may be necessary to remove the deposit with a cleaning agent
(such as alcohol).
•
Attach an electrode (
minus
) in the middle of the forehead, just below the hairline. The positioning of the other
electrode (
Patient Reference
) is far less strict. This electrode can be placed on the forehead, on the temple or on
the chin.
These instructions must be adapted depending of the ear(s) tested, in every case the
red
color corresponds
to the
right
ear, the
blue
color to the
left
ear.
The state of the options
“3 points wiring”
and
“Tube”
are saved for the next measures, however, the power
setting is always set back to 40 dB to be replaced in screening conditions.
