Equipment and Disposable Description
P/N 53063-50, Manual Revision: B
2-16
supernatant is forced through the outlet port. The hematocrit of blood in the bowl
increases as more blood solution is pumped in and the supernatant is forced out.
Figure 2-11: How the bowl works
1. In FILL, Blood is pumped in;
separation begins as the bowl spins.
2. The supernatant wastes overflow;
RBCs stay in the bowl.
3. As overflow continues, the
Hct in the bowl increases to
approximately 50%.
4. In WASH, saline circulates through
the RBC layer and displaces the waste.
5. The overflow runs clear. Free
hemoglobin and anticoagulant are in
the waste bag.
6. In EMPTY, the bowl stops
spinning. Washed, concentrated
RBCs are pumped to the reinfusion
bag.
Air To
Waste Bag
From
Collection
Reservoir
RBC
Waste
Air
Supernatant
Supernatant
Waste to
Waste Bag
From
Collection
Reservoir
Supernatant
Waste to
Waste Bag
From
Collection
Reservoir
From
Saline Bag
Saline
Wash to
Waste Bag
Saline Wash to
Waste Bag
From
Saline
Bag
Air from
Waste Bag
Concentrated
RBCs to
Reinfusion
Bag
Concentrated
RBCs suspended
in saline
