Drucker Diagnostics Paralens Advance - Manual (Page 37)

4.9 QBC PIPETTER
The QBC pipetter (Figure 4-9) is a fixed-volume
device, designed to aspirate 111.1 µL of blood to fill
standard QBC venous tubes. An AccuTube spacer
is used to adjust the fill volume to 70 µL when using
QBC AccuTubes.
The QBC pipetter incorporates a movable barrel
as shown in Figure 4-10. The barrel is opened
by twisting it forward. When opened, the pipetter
accepts the stoppered end of an AccuTube, or the
open end of a standard QBC venous tube. When
closed, the pipetter holds the tube in place and
seals it around its outside, permitting a vacuum to
be drawn.
Insert tubes gently into the open barrel. Pushing
forcefully will prematurely seat the stopper of an
AccuTube. Once inserted, close the barrel by
twisting it backward.
Depress plunger. Insert QBC Tube into well-mixed
blood. Release to fill.
Tilt pipetter upward. Twist barrel forward to OPEN,
remove QBC Tube.
Note: To prevent damage to laboratory gloves,
hold the barrel at the ribbed area when turning (see
Figure 4-11).
IMPORTANT: Always leave the barrel open when
the pipetter is not in use.
Figure 4-9.
QBC Pipetter
Figure 4-10.
Barrel of QBC Pipetter
Figure 4-11.
Correct Barrel Adjustment Location
OPEN
STOPPER
END
CLOSE
SPACER
4-14