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Preparation and inspection
3
Inspection of the suction control valve (OF-B120)
Warning
• If any abnormality is detected with the rubber seal of suction control valve (OF - B120)
(Figure 3.20), replace the suction control valve with a new one. Use of a suction control
valve with any abnormality can result in continuously weak aspiration, which may hinder
the procedure. Dispersal of patient material into the environment can also occur, posing
a risk of infection to healthcare providers.
• The O - ring of the suction control valve is a consumable. If any abnormality is detected
with the O - ring, stop use immediately and replace it with a new one. Use the compatible
O - ring set (OF - B127) for O - ring replacement. Using an O - ring with abnormalities or
non - compatible O - ring could result in unintended continuous suction and may hinder
the examination. It could also pose a risk of infection to the user as a result of reflux or
dispersal of patient’s body fluids from the suction control valve.
• Replacement O - ring is NOT sterilized or disinfected before shipment. Perform cleaning
and high - level disinfection, and /or sterilization of the suction control valve after O - ring
replacement.
Note
Use the O ring set (OF - B127) to replace the O - ring of the suction control valve (OF - B120).
Suction Control Valve (OF - B120)
(1) Rubber Seal
(2) O - ring
(3) Hole
Figure 3.20
1. Check the suction control valve (OF- B120) 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 the rubber seal (Figure 3.20).
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