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FILLING AND PURGING A SYRINGE
Operators can fill a syringe using the Fill Strip or the Auto-Fill
button.
1. Orient the Injector Head to the Purge (upright) position during
filling of syringe and purging of air.
2. Remove the Quick Fill Tube from the syringe package.
3. Remove the dustcap from the syringe tip and set aside
maintaining sterility.
4. Attach the short end of the Quick Fill Tube to the syringe
tip.
NOTE: The Quick Fill Tube can be attached without
repositioning the FasTurn nut (H) attached to the syringe
tip.
5. Insert the long end of the Quick Fill Tube into the fluid
source (usually contrast media). Raise the contrast bottle
until the Quick Fill Tube is fully inserted into the contrast.
NOTE: Use a Quick Fill Tube or equivalent device to
reduce the volume and size of air bubbles drawn into the
syringe during filling. It is more difficult to remove the air
bubbles if you use smaller diameter tubes or a tube longer
than 10 in. (25 cm.)
6. On the Injector Head, press the Enable button (A), and
then press the reverse arrows (B) on the Fill Strip (C) until
the system fills the syringe with the desired contrast
volume.
• Alternatively, on the Injector Head, press the Enable
button and then press and release the Auto-Fill button
MEDRAD Mark 7 Arterion
(I). The
the preconfigured contrast volume at the preconfigured
speed. The volume and speed are configured from the
Display Control Unit Options tab.
7. If required, use your free hand to gently tap the base of the
pressure jacket to facilitate migration of air bubbles
remaining within the syringe and on the syringe plunger to
the syringe tip.
8. Carefully observe the FluiDots indicators to ensure that
fluid is present in the syringe. Verify that the FluiDots
indicators are round in the filled portion of the syringe. The
rounded shape of the FluiDots indicators varies according
to the type of contrast media, but an oblong shape
indicates the presence of air. Rounded FluiDots indicators
do not indicate the total absence of air bubbles in the
syringe tip.
Empty Syringe
Filled Syringe
9. Purge all air out of syringe after filling. Turn the Manual
Knob (J) clockwise to remove air from the syringe.
10. Remove the Quick Fill Tube from the syringe tip.
11. Visually confirm that all air bubbles have been removed
from the syringe. Tap syringe after filling to facilitate air
removal.
12. The system is ready to accept installation of the High
Pressure Connector Tubing (HPCT). If you are not installing
the HPCT at this time, replace the sterile dustcap. Refer to
MEDRAD Mark 7 Arterion operation manual for HPCT
specifications, connecting, and purging.
REMOVING A SYRINGE
1. Disconnect the disposable tubing set from the vascular
entry device, such as a catheter or sheath. The disposable
tubing set does not need to be disconnected from the
syringe.
2. Press the End Case button on the Display Control Unit.
Select Yes to acknowledge that you want to end the case,
and that the patient has been disconnected from the
system.
• Alternatively, turn the Manual Knob counter-clockwise
to retract the syringe plunger 2ml.
3. Open the drop front.
4. Rotate the syringe 1/4 turn clockwise and gently pull the
syringe out of the Pressure Jacket. Discard the syringe
with disposable tubing set into a bio-hazard container.
NOTE: Once the syringe is removed from the injector
and the Injector Head is rotated into the Purge position, the
injector sounds an audible beep three times, and the
piston automatically retracts to the home position. Auto
fills the syringe with
Retract must be enabled for this feature to function.
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