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6. Gently and slowly remove the tip cover using gentle traction and release, without
touching the distal thin-walled sensing portion of the catheter.
Take care to prevent gel
loss due to compression of the catheter or sudden release of the tip cover. Always
examine the catheter prior to implantation for gel loss or bubbles. If there is gel loss
or bubbles, the catheter will need to be re-gelled. For help with this process, refer to
the Guidelines for the Re-gel of the PA-C40 Device on our website:
www.datasci.com. A video clip of this procedure is also available on our website.
6. Apply gentle tension to the distal ligation suture and proximal temporary occlusion
suture. Grasp the catheter at the overlap section in your dominant hand and the pre-bent
20-gauge needle in the other hand. Pierce the artery using the needle and insert the
catheter under the tip of the needle as it is withdrawn. Alternatively, a vessel pick may be
used to dilate the vessel slightly before placing the catheter (see Figure 24).
Figure 24. Systemic Pressure Catheter Placement
7. Advance the catheter into the artery until it reaches the proximal occlusion suture and
then stop. Now gently tighten the middle suture around the artery containing the catheter
to secure the catheter in the vessel. Next release tension on the proximal occlusion suture
and continue passing the catheter until the length marking suture is at the level of the
artery. Now release tension on the distal ligation suture, and tighten both the proximal
temporary occlusion suture and middle sutures around the artery containing the catheter.
8. Each tail of the middle suture can now be tied to one of the length-marking suture tails to
further lock the catheter into place. Next the tails of the distal occlusion sutures can be
brought around the catheter and tied.
Iliac Artery Systemic Blood Pressure Catheter Placement
