Olympus Evis Exera II Instructions Manual page 48

Chapter 3 Preparation and Inspection
Inspection of the biopsy valve
44
Spring
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.
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).
Normal
Slit
Cap
Figure 3.10
EVIS EXERA II GIF/CF/PCF TYPE 180 Series OPERATION MANUAL
Skirt
Hole
Suction valve (MH-443)
Hole
Main body
Abnormal
Discoloration
Splits, Cracks