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Suction
Depress the suction valve to aspirate excess fluid or other debris obscuring the
endoscopic image (see Figure 4.3).
Observation of the endoscopic image
Refer to the light source's instruction manual for instructions on how to adjust the
brightness.
EVIS EXERA TJF TYPE 160VR OPERATION MANUAL
•
Avoid aspirating solid matter or thick fluids; channel or 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. The 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, take notice that the suction bottle does
not fill completely. Aspirating fluids into a full bottle may
cause the suction pump to malfunction.
Performing both air feeding and suction at the same time
sometimes makes it easier to remove water droplets from the
objective lens surface.
Chapter 4 Operation
51
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