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6. Remove cap from the filled cartridge tip. To avoid insulin spillage and introduction of
air in the cartridge, it should never be filled beyond the 2.0 mL mark. The plunger is
properly positioned for maximum fill when the black o-ring nearest the plunger tip is
centered on the 2.0 mL mark. Attach infusion set Luer connector to cartridge tip using
clockwise motion until finger tight and then twist another quarter of a turn.
Be sure to twist the Luer connector an extra quarter of a turn to ensure a secure
connection.
7. Put cartridge/tubing assembly aside.
Check for leaks, cracks or damage each time you change your cartridge and infusion set. To
avoid leakage, be sure to tighten the Luer connection securely. You can check for moisture
periodically by wrapping a tissue around the Luer connection between the cartridge and
infusion set.
When handling the cartridge, take care not to move the plunger from side to side in the
cartridge body. Maintaining straight alignment of the plunger keeps the o-rings properly
seated, which minimizes the possibility of introducing air into the cartridge and will
prevent insulin spillage.
Changing the Cartridge
1. Disconnect infusion set from your body.
2. Unscrew the cartridge cap, leaving tubing connected to the cartridge.
3. With the tubing connected to the cartridge, pull cartridge straight out of the pump.
4. Disconnect tubing from cartridge and discard. Proceed with filling the new cartridge as
outlined in this chapter.
Connect infusion set to
cartridge here
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