Choosing A Trigger Mode
6-13
6. Operating Procedures
6.1: Operating Instructions
An Automatic Response alarm will alert you if the AutoCAT
®
2 Series loses the triggering
signal. If this happens, change to another trigger mode or AutoPilot
™
mode. The system will
provide you with corrective action steps. Further information is available in Chapter 8.
NOTE: If Real Time Deflation is desired as the method of timing, select the Afib Mode.
NOTE: White overlay on AP waveform does not appear in the Afib trigger mode.
WARNING
Use of Afib trigger mode may produce late deflation which could compromise cardiac output. Carefully
monitor hemodynamics when Afib Trigger is used or if deflation is set beyond 100%.
• Verify Reliable Triggering
Check HR
Check White markers on ECG/AP
Verify the selected trigger mode is displayed below the HR.
7. Initiating Counterpulsation
After you have verified that a reliable trigger is present, follow the steps below to initiate
counterpulsation.
Press the ON key. This will purge the system of ambient air and fill it with
Helium. If this is the first time pumping has been started after power up, the
pump will perform a special purge cycle. Pumping will begin after the purge
cycle is complete. The balloon pressure waveform will now appear on the
display.
During routine pumping the Stand-by or ON key can be used to re-purge and
start the system. The Stand-by key will perform 4 purge beats versus 2 for the
ON key. If the pump had been OFF (not pumping) for more than one hour, the
Stand-by key is recommended. Press ON to start pumping if Stand-by is used to
purge the system.
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