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AutoCAT® TRIGGER MODES ECG
In OPERATOR mode, the ECG trigger key can be used to toggle between triggering on the R WAVE and the V SPIKE of a V or AV paced rhythm.
ARTERIAL PRESSURE (AP)
Caution: U.S. Federal Law limits these devices to sale by or on order of a physician. Contents of unopened, undamaged package are sterile. Disposable. Refer to package insert for current warnings, indications, contraindications, precautions, and instructions for use.
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The computer analyzes the SLOPE and HEIGHT of a positively or negatively deflected QRS complex. Rejects pacer spikes on the basis of sharp rising edge. Automatically initiates ARRHYTHMIA TIMING when at least 8 out of 16 beats are detected as irregular. (Refer to Arrhythmia Timing in the section Timing with Arrhythmias).
In AUTOPILOT mode, if no QRS or AP trigger is found, it will trigger on the V SPIKE of an AV paced rhythm.
The computer uses the SYSTOLIC UPSTROKE of an arterial pressure waveform as the trigger signal. A 14mmHg minimum pulse pressure is required to initially recognize the trigger. Once pumping begins the subsequent pulse pressure requirement is reduced to 7mmHg. Every 64th beat is unassisted and reassessed. This mode is available as an option for clinical situations where an ECG is unavailable or distorted.
The balloon inflates and deflates at a pre-set rate regardless of the patient's cardiac activity. This mode is only to be used in situations where there is NO CARDIAC OUTPUT and NO ECG (cardiac arrest, cardiopulmonary bypass). This trigger can only be initiated when the pump is in STANDBY. Repeated pressing of the INTERNAL trigger key will toggle between pumping at rates of 40, 60, or 80 assists per minute. Reducing the assist ratio will also reduce the internal rate.