8
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.
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 supplied by Bayer 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
(I). The MEDRAD
Mark 7 Arterion
fills the syringe with
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.
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 MEDRAD
Twist & Go
High Pressure Connector Tubing (TAGHPCT).
If you are not installing the TAGHPCT at this time, replace
the sterile dustcap. See operations manual for TAGHPCT
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
Retract must be enabled for this feature to function.
Empty Syringe
Filled Syringe
