User's Manual

Pump refill procedure
76
Refill the Pump
1. Use the IN refill syringe containing 20 ml of degassed insulin, at room
temperature.
2. Enter the Pump by passing the refill needle with the attached IN refill syringe
through the 18 gauge guide needle. Pull back slightly (approximately 2 mm)
on the 18 gauge needle to allow the refill needle to enter the Pump and
actuate the inlet valve (see Figure 13).
3. Open the stopcock. Maintain downward pressure on the IN refill syringe to
ensure the inlet valve in the Pump remains open. Allow the Pump to draw in
insulin until the fluid level stops moving. Close the stopcock.
4. Remove the IN syringe and prepare for aspiration without expelling any fluid
by pulling back on the plunger until it locks. Re-enter the Pump, open the
stopcock and withdraw 2 ml in order to activate the negative pressure safety
feature of the Pump.
OPTIONAL
Use this step only if the
plunger is not moving
during the fill of the
reservoir.
With the refill needle
pointing down, vent the
syringe head space by
pulling back firmly on the
plunger until the second
sealing ring on the black
rubber cap passes beyond
the vent hole (see Figure
14).
Figure 14: Venting the Medtronic MiniMed refill syringe