User's Manual

112
Accessing the pump inlet
(See Figure 16.) To enter the Pump fill port or the side port, make sure the refill
syringe stopcock is closed, then pass the Medtronic MiniMed refill needle
(MMT- 4102) through the 18 gauge guide needle. Pull back slightly (approxi-
mately 2 mm) on the guide needle to allow the Medtronic MiniMed refill needle
to enter the Pump fill port or the side port. The refill needle entry opens the inlet
valve of the Pump fill port.
After passing through the septum and seating in the valve, you can feel the
increased force, about 0.5 pounds, required to move the valve 0.5 millimeter to
open. Maintain this downward pressure in the pump fill port to ensure that the
inlet valve remains open. In the case of the side port, a downward pressure is not
required after the needle is completely inserted.
Figure 16: Inlet valve