Terumo BCT Trima Accel, Service Manual

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Blood Prime Substates
The Blood Prime state consists of four substates: Two substates prime the inlet and return lines with
blood, and two substates vent pressure from the product bags.
Blood Prime Inlet (Blood Prime Inlet Lines) Substate
The inlet and AC pumps run at the calculated collection procedure values (Qac and Qin) for the chosen
procedure with all valves remaining in the return position. The centrifuge is commanded on. When a
version-specific predetermined inlet volume is pumped, the Trima Accel system advances to the Blood
Prime Return substate.
Table 3-76: Blood Prime Inlet Substate
AC Pump
(mL/min) Inlet Pump
(mL/min)
Plasma
Pump
(mL/min)
Platelet
Pump
(mL/min)
Return
Pump
(mL/min)
Platelet
Valve
Plasma
Valve
RBC
Valve
Centrifuge
(rpm)
Qac 40 0 0 0 Return Return Return 200
Exit Condition When 13 mL is processed by inlet pump and centrifuge reaches 200 rpm.
Blood Prime Return (Blood Prime Return Line) Substate
The return pump is commanded to run. When fluid is sensed at the lower-level sensor of the reservoir,
the return pump continues running for a version-specific predetermined volume and then stops. The
volume pumped by the return pump must be between version-specific predetermined amounts. When
the actual centrifuge speed is within 25 rpm of the commanded speed within the exit condition time, the
Trima Accel system advances to the Evac Set Valves substate.
Table 3-77: Blood Prime Return Substate
AC Pump
(mL/min) Inlet Pump
(mL/min)
Plasma
Pump
(mL/min)
Platelet
Pump
(mL/min)
Return
Pump
(mL/min)
Platelet
Valve
Plasma
Valve
RBC
Valve
Centrifuge
(rpm)
5.8
2.9*
0 0 0 -40 Return Return Return 200
*Version 6.0.3
Exit Condition When 5 mL is processed by inlet pump after lower-level sensor detects fluid.
Software Description
3-56 Trima Accel
®
Automated Blood Collection System • Service Manual