Hyperthermia Pump: Parameters Setting and Preventive Maintenance
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Hardware Verification:
a.
Valve
i.
Press LEFT VALVE, confirm that the valve wand (valve pincher) moves to the left.
ii.
Press OPEN VALVE, confirm that valve wand moves to the middle position.
iii.
Press RIGHT VALVE, confirm that the valve wand moves to the right. Leave the valve in
the LEFT VALVE position before continuing to the next step.
b.
Fluid Out and Air Detectors
i.
Confirm that the Fluid Out Detector and the Air Detector status lines display FLUID when
the system is primed and no air is in the detectors.
ii.
Open the door and pull out the tubing from the detectors. Close the door and confirm that
the status line display AIR when the tubing is removed from the sensor.
c.
Battery Voltage
Unplug the unit from the wall outlet. ‘Battery voltage’ displayed in HARDWARE screen, should
be approximately 24 volts. If not, recharge the battery for at least 8 hours and recheck. Plug the unit
back into the wall outlet.
d.
Flow Rate
The flow rate can be verified by actually measuring the flow using a graduated cylinder and timer
or by using a tachometer. Choose the method that best serves your setup.
Directly measure the flow:
i.
Make certain the patient line and entire disposable is fully primed before measuring. Set
the pump speed to 10 ml/min. Press RIGHT VALVE to set the valve into the infuse
position and fill the patient line. Use a graduated cylinder to measure flow at the patient
line for ten minutes and verify the average flow rate over that period. The volume collected
should be 100 ± 25 ml for an averaged flow rate of 10 ± 2.5 ml/min.
ii.
Press PUMP SPEED again to change the pump speed to 100 ml/min and measure the flow
with a graduated cylinder for one minute. The accepted tolerance is 100 ± 10 ml/min.
iii.
Press once more to change speed to 500 ml/min and repeat the measurement. The accepted
tolerance is 500 ± 50 ml/min.
iv.
Press once more to change speed to 750 ml/min and repeat the measurement. The accepted
tolerance is 750 ± 50 ml/min.
v.
Press once more to change speed to 1000 ml/min and repeat the measurement. The
accepted tolerance is 1000 ± 100 ml/min.
