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Chapter 4 Operation
ULTRASOUND GASTROVIDEOSCOPE GF-UCT180
Inspection of air/water and balloon channels
After withdrawal of the endoscope from the patient, perform the following
channel inspection steps to detect residual blood and foreign material clogging
the air/water and balloon channels.
Use MAJ-1444 Air/Water valve to conduct the following inspection steps.
1. Switch the airflow regulator to maximum output (“HIGH” or “3”).
2. Prepare clean water in a 500 cm
3
(500 ml) container
3. Immerse the distal end of the insertion tube in the water.
4. Cover the hole in the air/water valve with your finger and confirm that air
bubbles are continuously emitted from the air/water nozzle for 10 seconds.
If air bubbles are not emitted continuously, the air/water
channel may be clogged by patient fluids. If your scope does
not continuously emit air bubbles during this step, please
immediately cease use of the scope and contact Olympus to
schedule service and repair of the scope.
5. Keep the air/water valve’s hole covered with your finger and depress the
valve to the first stage. Observe the endoscopic image and confirm that
water flows from the air/water nozzle on the entire objective lens for
10 seconds.
• If water does not exit, the air/water channel may be clogged
by patient fluids. If water does not exit from your scope during
this step, please immediately cease use of the scope and
contact Olympus to schedule service and repair of the scope.
• Spray may occur because water comes out from the air/water
nozzle.
6. Keep the air/water valve’s hole covered with your finger and completely
depress the valve. Observe the water is emitted through the balloon water
supply port for 10 seconds.
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