Special Cycles
6-4
20077/021 US XTRA Operator’s Manual
hematocrit of the incoming blood (%). The Concentrate pump speed (ml/min.) may be adjusted by
touching the pump rotor text box.
Touching the Pause button will stop the pump rotor. The centrifuge will continue to
spin for five minutes. While the system is paused, the operator may use the Phase
buttons in the button bar to abort the Concentrate cycle and continue processing in
the selected (or a different) phase. To resume the paused Concentrate cycle, touch the Play button.
When the buffy coat is detected, exit from the Concentrate cycle comes about in the same way as in
the Fill or Spill phases, according to the active operating mode and protocol (refer to “Running a Case
With the X
TRA System” on page 5-5 and “Running a Preoperative Sequestration Case” on page 10-9).
Note: If the Last Bowl function is activated and the air sensor detects the RBC bag to be empty
before the bowl is filled, the system will stop and prompt the operator to decide how to continue
processing (refer to “Last Bowl” on page 7-4).
Priming the Reinfusion Line: Prime IV
The XTRA system has a Prime IV function which can be used to pump 5 ml and 30 ml of wash solution
into the RBC bag and empty line, respectively, to simplify priming the reinfusion line. However, it is
strongly recommended that this feature not
be used unless the reinfusion line is routed through
reinfusion protection devices. See “Reinfusion” on page 6-7 for instructions. The prime volume is not
counted in any tally data for the case.
The Prime IV cycle is initiated by touching the “Prime IV” button, which is accessible from
the Special Cycles Screen when the machine is stopped prior to the start of a processing
protocol (refer to “The Special Cycles Screen” on page 6-1). The Prime IV button is only
available if the function is enabled in the “Features” tab of the Configuration Mode Screen.
During this cycle, the Wash clamp is opened (the other clamps remaining closed) and the pump
rotates counterclockwise to move 47 ml saline solution from the Wash bag into the bowl. Then, the
Wash clamp is closed and the Empty clamp is opened, and the pump rotates clockwise to move 35 ml
CAUTION
The Concentration function reprocesses already collected red blood cells
subjecting them again to the mechanical action of the pump and the
centrifuge. The repeated use of the Concentration function on the same red
blood cells might lead to them being damaged and therefore to their loss.
WARNING
To reduce the possibility of air or particulate embolism, LivaNova
STRONGLY RECOMMENDS the use of reinfusion protection devices,
including microfilters, when infusing processed blood.
WARNING
Do not reinfuse the patient’s blood from the primary RBC bag when it is
connected to the X
TRA autologous transfusion circuit. Reinfusion from
the primary reinfusion bag connected to the circuit could lead to air
embolism.
WARNING
Do not reinfuse under pressure (i.e., do not use a blood pressure cuff
on the RBC or plasma/PRP bags). Reinfusion under pressure could
lead to air embolism.
WARNING
To reduce risk of air embolism, remove all air from the primary
reinfusion bag before handing the bag over for reinfusion.
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