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Priming and Tips
Priming should be done slowly! – Slow priming will lessen the effort to
remove air bubbles afterward.
Prime using gravity! – Pressing may result in leakage of liquid or bubbles
by forcing the liquid to flow into the system. If small bubbles flow too
slowly inside the system, lift up the supply bag.
1 inch corresponds to 2mmHg, and the primed 4-feet line gives a
pressure of about 100mmHg if it is completely spread out The solution
bag should be placed at a higher position than the converter and the
pressing tube, in order for priming using gravity.
1. Twist the sterilized solution bag lightly using a drip chamber spike.
2. Open the roller clamp and remove the air inside the bag completely
by squeezing using an infusion set or an 18-gauge needle inserted
into the injection port in the back. By emptying the back this way, it
can prevent air input into the patient’s body.
3. Before inputting the solution into the infusion set, push both sides
and fill the drip chamber partially.
4. Operate the flush device gently. Since air rises from the bottom,
make sure that the solution is in the bottom at all times.
5. Prime the side ports and the plug of the zero point stopcocks in
the converter using a door-lock plug. <Caution: The stopcocks of
the converter or the outlet should be locked before connecting the
door- lock plug.>
6. Check if bubbles are present in the monitoring system. To check
the presence of invisible bubbles, rap it lightly.
◈ If air foam or bubbles are present inside the system, it may cause
significant bias of the pressure waveform or air embolism.
7. Add pressure to the system up to 300mmHg using C-fusor or the
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