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Chapter 3 Preparation and Inspection
EVIS EXERA II GIF/CF/PCF TYPE 180 Series OPERATION MANUAL
Figure 3.9
The air/water and suction valves are consumable items. If the
inspection of the air/water or suction valve reveals any
irregularities, use new valves.
Inspection of the biopsy valve
The biopsy valve is a consumable item that should be
inspected before each use. Replace it with a new one if
irregularities are observed during the following inspection. An
irregular, abnormal or damaged 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.
1. Confirm that the slit and hole on the biopsy valve have no splits, cracks,
deformation, discoloration or other damage (see Figure 3.10).
Figure 3.10
Spring
Skirt
Hole
Suction valve (MH-443)
Normal
Abnormal
Slit
Discoloration
Hole
Cap
Main body
Splits, Cracks
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