User guide

WARNINGS
The size of a post-occlusion
bolus can increase if there is
air in the line, when other
catheter sizes, filters and
extension set tubing with sof-
ter materials are used, or
when the lines from the pump
are connected to other
access devices.
After an occlusion signal use
appropriate precaution with
the aim to avoid the admini -
stration of a post-occlusion
bolus to the patient.
SECTION 9
53
OCCLUSION OF INFUSION SET
MAN 01/06/USA/p CRONO FIVE 11.10
The pump has been designed to recognise
when the drug delivery is interrupted by exter-
nal circumstances such as involuntary kink of
the infusion set tubing. In this case the pump
stops running the infusion, the display will
show the symbol for occlusion and the pump
will emit an acoustic signal every 10 seconds.
Drug administration is interrupted as long as
the occlusion remains. Find and remove the
reason for the occlusion and press thereafter
the button to silence the acoustic signal
and to resume the infusion.
NOTE
• Search for the occlusion along the infusion set
and in the connection point of the set to the
patient.
• It is recommended to use kink-free infusion
sets to prevent or reduce occlusions to
occur.
When the occlusion alarm signal is triggered,
the pump has built up a certain overpressure
in the administration line(s), which has to be
eliminated to avoid an accidental post occlu -
sion bolus that could result in serious injury or
death of the patient.
The size of a post-occlusion bolus for Crono
Five in combination with an infusion set with
27G needle, 80 cm lenght with very stif f lining
is about 0.4 ml.
10
20
POST OCCLUSION BOLUS