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Describing the PCS2 Device Components
P/N 85266-30, Manual revision: A
Pumps
Located on the left side of the PCS2 top deck are two pumps which use peristaltic
movements to displace fluids through the disposable-set tubing.
Figure 2-6, PCS2 pump rotor
Anticoagulant pump
The AC pump, designated by the color blue, moves AC solution between the AC
solution bag and the needle connector of the donor line tubing.
Blood pump
The Blood pump, designated by the color red, moves fluids between the donor
and the centrifuge bowl.
The pumps function during the different modes of PCS2 operation as follows:
z
When loading the disposable tubing, the AC pump and the Blood pump
turn simultaneously to thread the tubing onto the pump rotors.
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During the PRIME mode, the AC pump and the Blood pump turn simul-
taneously to provide the inlet side of the donor line tubing with AC so-
lution.
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During the DRAW mode, the AC pump and the Blood pump turn simul-
taneously. The Blood pump pulls anticoagulated whole blood through
the blood filter of the disposable set into the centrifuge bowl.
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During the RETURN mode, the Blood pump pulls the remaining blood
components from the centrifuge bowl and re-infuses them to the donor.
Note: The two pumps will rotate at different speeds during the PCS2 modes of
operation, depending on the AC/Blood pump ratio procedure parameter setting.
Pump tubing guide
Next to each of the PCS2 pumps is a tubing guide. It will secure the disposable
tubing during pump autoloading, as well as during the collection procedure.
