
46
GA 7000C-E-0313
© 2013 by arcomed ag, Switzerland
Depending on the length of the infusion line and the occlusion pressure limit a bolus volume
is built up in the line between pump and patient. When the occlusion pressure limit is
reached, the pump reverses to reduce this bolus volume. This is known as bolus reduction.
The occlusion alarm delay depends on the system of infusion line, canola, pressure limit and
the rate:
Volumed
3101P PVC
Pressure limit
Volumed
8101P SIL
Pressure limit
100 mbar
500 mbar
1000mbar
100 mbar
500 mbar 1000 mbar
1 ml/h
5 min
35 min
75 min
1 ml/h
6 min
30 min
75 min
50 ml/h
5 sec
40 sec
73 sec
50 ml/h
8 sec
30 sec
65 sec
999 ml/h
< 1 sec
3 sec
5 sec
1200 ml/h
<1 sec
1 sec
2 sec
NOTE:
Check the IV system carefully for the cause of the alarm. Do not restart the pump
until the occlusion is released. Keep in mind that not always an occlusion causes the
occlusion alarm. Therefore it is necessary to check that the line is not kinked and that it can
be moved freely.
Warning: After the cause of the occlusion alarm is eliminated, the pump may be
restarted.
After the cause of the alarm is removed, the alarm symbol starts flashing and the pump can
be restarted again.
In general the pumps should not be used to infuse in systems with very high internal
pressure for the following reasons:
If the pump runs with a low rate it takes some time until the pump builds up enough
force to overcome the high pressure.
It is not always possible to detect an occlusion in such systems. Therefore it can be
that the patient does not receive medication for a longer period of time.
4.7
Empty Bag Alarm
Every Volumed®
VP7000 is equipped with an Empty Bag Detector
– the Easy Clip. The
Easy Clip is an optical sensor which detects the falling drops in the drip chamber. The Easy
Clip only checks and monitors internal functions of the pump. The pump is not controlled by
this device. By detecting when the bag is empty it is possible to use infusion sets for more
than one infusion.
The Empty Bag alarm is triggered if the actual amount of drops falling does not correspond to
the set rate. In this event the pump stops, an audible and visual alarm
is emitted.
Usually the cause of such an alarm is an empty infusion container. In case the infusion
container is not empty, please check the following points:
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