Chapter 3 Preparation and Inspection
49
ULTRASOUND GASTROVIDEOSCOPE GF-UCT180
Inspection of the objective lens cleaning function
Use sterile water only. Nonsterile water may cause patient
cross-contamination and/or infection.
• When the air/water valve is depressed for the first time, it
may take a few seconds before water is emitted.
• If the air/water valve returns to its original position slowly after
water feeding, remove the air/water valve and moisten the
seals with sterile water.
• During the inspection, place the distal end of the endoscope
in a beaker or other container so that the floor does not get
wet.
1. 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.
2. Release the air/water valve. While observing the endoscopic image, confirm
that the emission of water stops and that the valve returns smoothly to its
original position.
3. While observing the endoscopic image, feed air after feeding water by
covering the hole in the air/water valve with your finger. Confirm that the
emitted air removes the remaining water from the objective lens and clears
the endoscopic image.
Inspection of the water feeding function into the balloon
Cover the air/water valve’s hole and completely depress the valve.
Confirm that water is emitted through the balloon water supply port for
10 seconds.
It may take a few seconds until water is emitted when the air/water valve is
depressed for the first time.
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