Terumo BCT Trima Accel, Руководство по обслуживанию

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Table 2-1: Pump system components
Pump Name Function
1 AC pump
The AC pump supplies anticolagulant to the access manifold. The AC
pump runs only during the draw cycle. For safety reasons, the
maximum AC pump flow rate is limited to a value based on the
patient's total blood volume (TBV).
2 Inlet pump
The inlet pump draws whole blood and AC into the system and pumps
it into the centrifuge channel.
The maximum speed of the inlet pump can be configured to fast
(142 mL/min), medium (120 mL/min), or slow (100 mL/min). The
maximum inlet pump speed can also be limited based on the TBV
limits that are configured.
3 Return pump
The return pump returns blood and blood components to the patient.
The pump can run in both forward and reverse directions to aid in
priming, and during a safe cassette load and unload. The return pump
motor is a different assembly than the rest of the pump motors. The
direction of the return pump is constantly monitored during the
procedure for safety reasons. The return pump returns blood to the
patient during the return cycle until air is detected at the lower-level
sensor, signaling the logic to switch back to the draw cycle. This pump
has a larger rotor than the other four pumps.
4 Plasma pump
The plasma pump is used to collect plasma or recirculate plasma to
the platelet line for addition to the platelet product or to the reservoir,
depending on the position of the platelet valve. The speed of the
plasma pump is varied to control the interface in the channel.
5 Platelet pump
The platelet pump is used to collect platelets or move recirculated
plasma to the platelet product or reservoir. The platelet pump is also
used to add replacement fluid for the donor during a dRBC run. The
platelet pump rotor is not interchangeable with the other rotors.
Pump System
Trima Accel
®
Automated Blood Collection System • Service Manual 2-3