ARROW VPS G4

Using the ARROW^® VPS G4^™ Device

The ARROW ^®VPS G4^™ Device uses colored symbols to indicate when the catheter is moving in the right direction, but also indicates when the catheter is moving in the wrong direction.

• Green Arrow: Keep Going
  The catheter/VPS^® Stylet assembly is moving with the flow of the blood towards the heart.
• Orange Circle: Do Not Enter
  The catheter/VPS^® Stylet assembly is moving against the flow of the blood. The catheter/VPS^® Stylet assembly could be advancing up the jugular, in the azygous vein, in an artery, laterally across the chest, or beyond the target (in the right atrium). If this occurs, gently retract the catheter/VPS ^® Stylet assembly until the Green Arrow or Blue Bullseye symbol appears.
• Yellow Triangle: Damped Doppler Signal
  The catheter tip is possibly against a vessel wall or retracted inside the catheter. If this occurs, pull the catheter/VPS^® Stylet assembly back. Check the VPS ^®Stylet marking by the touhy borst to verify the tip has not retracted back inside the catheter. Adjust the VPS^® Stylet if necessary. Turning the catheter/VPS^® Stylet assembly can also realign it inside the vessel to allow a strong signal to be obtained.
• Blue Bullseye: Correct Placement
  When a steady Blue Bullseye is achieved, the report button will turn blue. Push the blue REPORT button. Complete the procedure per hospital protocol.

  A Blue Bullseye can be expected in 90% of cases considering that about 10% of the population presents with arrhythmia.⁹ In those remaining cases, the tip can be positioned in the optimal location using a combination of Doppler, ECG and symbols irrespective of heart rhythm abnormality, but a confirmatory CXR is also required.