Smiths Medical Medfusion 3500, Operator'S Manual

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Medfusion® Model 3500 pump V6 Operator’s Manual
Volume Limit Defines if a pump user will be able to enter a Volume Limit during infusion
setup. This value cannot be set or changed while an infusion is running. The
range is 0 to 500 mL.
Device Setup Features
The following items are set on a per pump basis in the
Device Setup menu. While these features do not directly
affect infusion programming, they can affect alarms and
reporting.
Serial Number
Displays the pump serial number.
Preventative maintenance date Defines the date when the pump’s preventative maintenance required alarm
activates.
Time Zone
Defines the time zone where the pump is located.
Daylight Saving Defines if a pump will automatically switch to Daylight Saving Time on the
appropriate date. If selected, specify when Daylight Saving begins and ends,
what time the clocks change, and by how much.
Flow Delivery Graphs
In this device, as with all syringe infusion pumps, the
motion of the pumping mechanism and variations in
individual disposables (both the syringe and infusion
set) cause short-term fluctuations in the rate accuracy.
The curves on the following page show typical
performance of the pump system in two ways:
1. A flow versus time graph during the stabilization
period (start-up curves).
2. The accuracy of fluid delivery of particular time
periods or ‘observation windows’ is measured
(trumpet curves).
The start-up curve displays flow rate continuously
from the start of the infusion. The curve visually
represents flow rate uniformity. Trumpet curves are
derived from the second hour of this data. Tests were
performed per the IEC 60601-2-24 standard.
Over long observation windows, short term
fluctuations have minimal effect on accuracy
as represented by the flat part of the curve. As
the observation window is reduced, short term
fluctuations have an increasing effect as represented
by the “mouth” of the trumpet. Being aware of system
accuracy over various observation windows may be of
interest when certain drugs are being administered.
Short term fluctuations in rate accuracy may have
clinical impact depending on the half-life of the drug
being infused, therefore both the trumpet curve and
drug half-life should be taken into account.
The data was created using a Medfusion
®
pump and
Becton-Dickinson (B-D®) WWD 30 mL syringe.
The 1 mL/hr data was created using the Medfusion
®
536040 Extension set and 18G needle. The 5 mL/hr
data was created using the Medfusion
®
MX448HL60
Extension set and 18G needle.