ACIST RXI - Deliver the Navvus Microcatheter, Equalize Signals, and Enter Venous Pressure; Equalize Signals and Adjust Pv

Basic Operating Procedures
ACIST RXi System User’s Guide | 37901700-001,01 2019-09 English
Deliver the Navvus® MicroCatheter , E qualiz e Signa ls, and En t er Venous Press ur e
Equalize Signals and Adjust Pv
e following steps assume a standard Percutaneous Coronary Intervention
(PCI) protocol that uses the following items:
• an inserted 5F to 8F guide catheter
• an inserted 0.014 in guidewire
• a hemostasis valve
As with any interventional procedure, proper anticoagulation and antiplatelet
therapy should be used before beginning the procedure.
WARNING
Prior to use and whenever possible during the procedure, carefully inspect the Navvus
MicroCatheter for kinks or any other damage. Do not use a kinked or damaged
microcatheter as vessel damage and/or inability to advance or withdraw the
microcatheter may occur.
CAUTION
Carefully place the Navvus MicroCatheter on the guidewire to avoid damage to the tip.
Avoid contact between the guidewire and the small pressure sensor that is just proximal
to the microcatheter tip.
Tighten the Tuohy Borst adapter on the guide catheter after placing the Navvus
MicroCatheter distal shaft inside the guide catheter, or false low aortic pressure readings
may result.
Open the hemostasis valve fully to avoid damage to the Navvus Catheter tip.
Do not perform high pressure (greater than 600 psi) uid injections while the Navvus
MicroCatheter tip is inside the guide catheter.
Observe all Navvus MicroCatheter movement in the vessel. When the microcatheter is in
the body, it should be manipulated only under uoroscopy. Do not attempt to move the
microcatheter without observing the resultant tip response.
Always advance or withdraw the Navvus MicroCatheter slowly and carefully.
To deliver the Navvus MicroCatheter, equalize the signals, enter the venous
pressure, and perform the following:
1. Verify that the system is displaying the following message:
Ready to Equalize.
2. Remove the stylet from the end of the Navvus MicroCatheter. Do not
discard.
3. On the guide catheter, tighten the Tuohy Borst adapter. Failure to do so
may result in a false low aortic pressure reading.
4. Advance the Navvus MicroCatheter over the guidewire that is already in
place in the distal vasculature.
Deliver the
Navvus®
MicroCatheter,
Equalize Signals,
and Enter Venous
Pressure