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- NOTE: A clear sign of overfill is the appearance of small dimples of simulated fluid on the surface of the model at the sites of previous cannulations
- Optimal-filled vessel: An optimally-filled vessel can be identified using ultrasound by the presence of a black echo-free lumen.
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Removing Air
To remove air:
1. Fill a syringe with fluid and connect it to the tube.
2. Infuse fluid, and tilt the model up at least 6-10” so any air rises to the top.
3. Let the model sit for at least one hour to allow any air to rise.
4. Use the syringe to slowly pull the fluid out of the model.
5. Watch for air bubbles and let them rise to the top (back) of the syringe.
6. Slowly push fluid back in without pushing the air in.
7. Repeat steps 4-6 three to four times.
8. Empty the syringe into a container and use it to remove any additional fluid, then disconnect it.
NOTE: When all the fluid is removed, the syringe will be under vacuum. Do not put excessive
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force on the syringe or the tissue may rupture.
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If there is still air, fill any fluid spaces or vessels with fluid and let the model sit overnight, then
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repeat the procedure.