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Preparation and inspection
3
Inspection of the air/water feeding valve (OF- B188)
Warning
Replacement O - rings are NOT sterilized or disinfected before shipment. Perform cleaning
and high - level disinfection and /or sterilization of the air/ water feeding valve after O - ring
replacement.
Caution
• If any abnormality is detected with the check valve of air/ water feeding valve (OF- B188)
(Figure 3.19), replace the air/ water feeding valve with a new one. Use of an air/ water
feeding valve with abnormalities can result in continuous air feeding into the patient,
posing a risk of pain and /or perforation. Dispersal of patient material into the environment
can also occur, posing a risk of infection to healthcare providers.
• The O - ring of the air/ water feeding valve is a consumable. If any abnormality is detected
with the O - ring, stop using it immediately and replace it with a new one. Use the
compatible O - ring set for replacement. Using an O - ring with abnormalities or non -
compatible O - ring could lower the function of air/ water feeding, cause unintended
continuous air feeding, and pose a risk of pain to the patient. Dispersal of patient material
into the environment can also occur, posing a risk of infection to healthcare providers.
Note
• Use O ring set (OF - B192) to replace the O - ring of air/ water feeding valve (OF- B188).
• For details on the O - ring replacement method, refer to the IFU provided with the O ring
set (OF - B192).
Air/ Water Feeding Valve (OF- B188)
(1) O - ring
(2) Check Valve
(3) Hole
Figure 3.19
1. Check the air/ water feeding valve (OF- B188) for any abnormalities such as attachment of foreign
materials, deformation, cracks, or hole blockage.
2. Check that the O - ring is properly attached and that there is no chipping, breaks, or peeling in the
O - ring or check valve.
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