Terumo BCT Trima Accel, Service Manual

Page: 204 / 340

Donor Disconnect State
The Donor Disconnect state checks that the operator has correctly clamped off the donor access line
prior to disconnecting the donor. When the Disconnect Test substate is complete, the cassette is
unloaded.
This state ends when the disconnect test successfully passes and the cassette is unloaded, or when the test
fails three consecutive times, warning the operator. Successful completion of the Donor Disconnect
state results in the following conditions and actions.
Exit Condition
Trima Accel
System
Condition
Trima Accel System Action
The disconnect test has passed once and the
cassette has been unloaded, or the test failed
three consecutive times and the cassette has
been unloaded. Paused. The Trima Accel system proceeds to either the
Post Run state or the Metered Storage
Solution (MSS) state, depending on
configuration.
Donor Disconnect Substates
The Donor Disconnect state consists of five substates: Disconnect Test, Open Valves, Start Pumps,
Raise Cassette, and Stop Pumps. If MSS is configured on, the cassette is
not unloaded after the donor is
disconnected.
Disconnect Test Substate
The inlet pump is commanded to a predetermined speed, and the Trima Accel system waits to verify that
the access pressure drops by a predetermined amount within 30 seconds. Then the system checks that
the pressure does not decay by more than a predetermined amount within the following 10 seconds. If
both tests fail, a disconnect test alert is displayed and the Trima Accel system repeats the test. The
operator is prompted to repeat the test. If it fails twice again, a disconnect test alarm is generated and the
operator is allowed to unload the cassette by pressing
Continue
and
Confirm Disconnect
.
Table 3-105: Donor Disconnect Test 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)
0 50, 0 0 0 0 Return Return Return 0
Version 6.0 Software Description
Trima Accel
®
Automated Blood Collection System • Service Manual 3-71