Olympus EVIS EXERA II Operation Manual page 52

Chapter 4 Operation
Observation of the endoscopic image
48
 Suction
• Avoid aspirating solid matter or thick fluids; instrument
channel, suction channel, or suction valve clogging can
occur. If the suction valve clogs and suction cannot be
stopped, disconnect the suction tube from the suction
connector on the endoscope connector. Turn the suction
pump OFF, detach the suction valve, and remove solid
matter or thick fluids.
• When aspirating, maintain the suction pressure at the lowest
level necessary to perform the procedure. Excessive suction
pressure could cause aspiration of and/or injury to the
mucous membrane. In addition, patient fluids could leak or
spray from the biopsy valve, posing an infection control risk.
• When aspirating, attach the cap to the main body of the
biopsy valve. An uncapped biopsy valve can reduce the
efficacy of the endoscope's suction system and may leak or
spray patient debris or fluids, posing an infection control risk.
During the procedure, make sure that the suction bottle does
not fill completely. Aspirating fluids into a full bottle may
cause the suction pump to malfunction.
Depress the suction valve to aspirate excess fluids or other debris obscuring the
endoscopic image (see Figure 4.3).
Performing both air feeding and suction at the same time
sometimes makes it easier to remove water droplets from the
objective lens surface.
Do not rely on the NBI observation mode alone for primary
detection of lesions or to make a decision regarding any
potential diagnostic or therapeutic intervention.
Refer to the light source's instruction manual for instructions on how to adjust the
brightness.
EVIS EXERA II TJF TYPE Q180V OPERATION MANUAL