M
EDEX
Medfusion 3500
Medex Operation Manual
Artwork GD000608 Revision 5
Page 14
The “
Near Empty
”
alarm
is a low-priority alarm during delivery telling you the syringe is “just about” empty. The
pump sound the low priority alarm tone, displays the near empty alarm message appears on screen, and does not stop
delivery.
1.
Press the
Alarm Silence
button “
” to clear the alarm message.
2.
Confirm how long you have before the infusion ends.
3.
Then be prepared to load a new syringe onto the pump if necessary, and then start a new infusion.
Calculating
Near Empty
Status
Near empty status is calculated by checking the
volume remaining
in the syringe
against the
near empty alarm time se
tting divided by
current delivery rate
.
“Syringe Empty” Alarm During Delivery
The S
YRINGE
E
MPTY
alarm
is a
high priority
alarm advising the syringe is empty.
1.
The E
MPTY
alarm stops delivery immediately.
2.
Press the
Alarm Silence
button “
” to clear the alarm tone & message.
3.
Unload the syringe.
4.
Either prepare and load another syringe, return to the S
ELECT THE
M
ODE
screen, where no alarms sound or
turn off the pump.
Calculating
Empty Status
Empty status is determined by measuring plunger position of syringe against the set
value for syringe size & manufacturer.
Caution
Monoject 3ml
Because of variations in syringe manufacturing, the Monoject 3ml syringe may in some
cases not fully empty. Here, the empty alarm sounds with some fluid left in the syringe.
“Syringe Empty
−
Manual” Alarm During Delivery
It is possible to override a “syringe empty” alarm sounded during delivery. There will be times when the pump
calculates the syringe is empty and yet there remains a residual volume of medication or fluid in the syringes. A
common cause is variation in manufacturing of syringes.
1.
Press the
Alarm Silence
button. The pump has stopped delivery and is at the B
EGIN
I
NFUSION
screen.
2.
If you do not wish to deliver this remaining fluid, then:
a)
Unload the syringe.
b)
Either prepare and load another syringe, return to the S
ELECT THE
M
ODE
screen, where no alarms sound
or turn off the pump.
3.
If you do wish to deliver the remaining fluid, then press the
Start
button.
4.
The pump begins delivery, and continues until no fluid remains in the syringe.
5.
As soon as the pump senses an occlusion, it halts delivery and displays the “Syringe Empty
−
Manual”
message onscreen.
6.
Press the
Alarm Silence
button. The pump has stopped delivery and is at the B
EGIN
I
NFUSION
screen.
7.
Either prepare and load another syringe, return to the Select the Mode screen, where no alarms sound or turn
off the pump.
General System Alarms & Alerts
This section contains a table of the general system alarms you may encounter while operating the
Medfusion 3500
infusion pumps. This table identifies the alarm by message and type, and provides a definition and possible remedies.
