Pentax EC-380LKp, Owner'S Manual, Page: 14 / 52

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4) Inspection of Suction Mechanism
a) Prior to use suction control valve (OF-B120)
should be inspected. Remove the value from the
control body and make sure that the rubber portion
is not damaged or worn.
b) Position the valve OF-B120 so that the small metal
tab near the base on the valve stem aligns with the
notched suction valve cylinder, also color coded in
orange. Install the valve into the suction cylinder by
gently pushing the valve into the cylinder. Never
apply excessive force to push the valve into the suc-
tion cylinder.
c) Connect suction tubing from an external suction
source to the suction nipple located on the PVE
Connector at the end of the umbilical cable. Place
the distal tip of the endoscope in a basin of sterile
water and depress the suction control valve. Water
should be rapidly aspirated into the suction system
collection container.
CAUTION:
The instrument, Air/Water channel systems are made of stainless steel, poly phenylene oxide and fluo-
rine-contained polymers. When any fluids are used with this scope, please read carefully and follow all
instructions in the manual supplied with the fluids for use and pay special attention to any reactions with
the materials identified in the intended fluid path. Only the user can determine if the fluids are appropriate
for patient use.
Silicone oil
O-Ring
OF-B127
OF-B120
Incorrect Correct
metal
OF-B120
OF-B120
WARNING:
Improperly installed valves may not function as
originally intended. Such valves may not return
to their neutral (released) positions and/or they
may provide continuous suction. Continuous
aspiration can cause loss of air/fluid, difficulty in
maintaining proper insufflation and/or inadvertent
suctioning of tissue into the distal instrument
channel opening.
WARNING:
A worn or damaged value and/or O-ring should be replaced with a new one. The entire value mecha-
nism should be subjected to a high-level disinfection or sterilization procedure prior to use (O-ring set,
model OF-B127, is optionally available). Failure to do so could result in continuous aspiration which in
certain clinical situation can suction tissue into the distal channel opening at the scope tip and/or create
a loss of insufflated air via the suction system.
A compromised valve could also result in the potential for reflux or spit-back of patient fluids that may
present infection control risks.
SUCTION
TUBE
DEPRESS
SUCTION
NIPPLE