Fluid Detection Methods - Bayer HealthCare CERTEGRA MEDRAD Stellant FLEX Operation Manual

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CAUTION
Mechanical Hazard - Patient injury could result if the syringe is not properly engaged.
Ensure the syringe is properly snapped into the front of the injector head before injecting. Improper
engagement or rotating syringe may cause the syringe to leak, to become damaged, or to come off
during the injection, and can result in an under-volume delivery and the syringe becoming a
projectile.

9.2.1 Fluid Detection Methods

The Stellant FLEX syringe aids in determining the presence of fluid by using three methods:
The use of clear material allows visual detection of air inside of the syringe.
MEDRAD® FluiDots on the syringe's wall appear round when the syringe is full of fluid and oval when the
syringe is empty.
MEDRAD® Beacon technology indicates the presence of fluid in an upright syringe by reflecting the plunger
color at the syringe's tip unless 5 mL or more of air is present.
9.2.1.1 Using MEDRAD® FluiDots
NOTE: If using the optional heat maintainer, ensure that the heat maintainer is positioned in such a way
that the Beacon and at least one of the FluiDots is visible.
FluiDots should be observed as part of an arming procedure. When the FluiDots are viewed through an empty
syringe, the dots appear as small, narrow ellipses, as illustrated in Figure 9 - 3: FluiDots. When viewed through a
full syringe, the dots become larger, almost round.
FluiDots must be viewed through fluid in the syringe. If viewed through an empty syringe, they will not change
shape. FluiDots must be viewed in a properly illuminated environment providing enough light to permit easy view-
ing.
9.2.1.2 Using the Syringe Beacon
MEDRAD® Beacon technology indicates the presence of fluid in an upright syringe by reflecting the plunger color at
the syringe's tip unless 5 mL or more of air is present. (Refer to Figure 9 - 5: Beacon Visibility).
NOTE: When there is 5 mL or more of air in the syringe, the Beacon reflection will not appear.
MEDRAD® Stellant FLEX CT Injection System with Certegra® Workstation
Empty Syringe Filled Syringe
Figure 9 - 3: FluiDots
Figure 9 - 4: Properly Illuminated FluiDots