Olympus BF-1TH190, Instructions Manual, Page: 86 / 104

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5.3 Withdrawal of the endoscope with an irregularity
BF-190 Series OPERATION MANUAL
Ch.5

Withdrawal when either the WLI or the NBI endoscopic
image does not appear on the monitor

Withdrawal when no endoscopic image appears on the
monitor or a frozen image cannot be restored
1
Turn all equipment OFF except the video system center, light source, and monitor.
2
Operate the video system center and the light source to switch to the endoscopic
image that is still displayed.
3
Follow the procedure given in “  Withdrawal when the WLI and NBI endoscopic
images appear on the monitor”, beginning from Step 3. Carefully withdraw the
endoscope under the visible observation mode when the WLI endoscopic image is
not displayed.
4
Remove the mouthpiece from the patient’s mouth.
1
Turn all equipment OFF except the video system center, light source, and monitor.
2
Turn the video system center and light source OFF and then ON again. If the WLI or
NBI endoscopic image appears or the frozen image is restored, follow the procedure
given in “
 Withdrawal when either the WLI or the NBI endoscopic image does not
appear on the monitor”, beginning from Step 2.
If all endoscopic images still do not appear or the frozen image cannot be restored,
perform the following steps.
3
Turn the video system center, light source, and monitor OFF.
4
When using an EndoTherapy accessory, close the tip of the EndoTherapy accessory
and/or retract it into its sheath. Then withdraw the EndoTherapy accessory slowly.
5
Operate the UP/DOWN angulation control lever to its neutral position and release the
angulation control lever.
6
Withdraw the endoscope from the patient carefully.
7
Remove the mouthpiece from the patient’s mouth.