Operator’s Manual
1-2
System Features
The EPT-1000 XP
TM
Cardiac Ablation System features the following:
•
The Controller produces a continuous unmodulated radio frequency (RF) output at
500 kHz.
•
The front panel displays the actual power output, tissue impedance, and if a
Catheter(T°) is connected to the Controller, catheter tip temperature.
•
The Controller measures RMS voltage, RMS current, and actual power output by
taking the average value of the product of voltage and current. (This reflects the
effective heating power delivered to the tissue from the Catheter electrode tip.
Impedance is calculated as RMS voltage divided by RMS current.)
•
The amount and duration of RF power delivery is user-selectable, and if a
Catheter(T°) is connected, the desired catheter tip temperature or maximum catheter
tip temperature is also user-selectable.
•
The number of RF power deliveries is automatically counted for the physician.
•
The XP APM provides RF filtering to allow continuous electrogram recording during
RF power delivery via the catheter tip electrode.
•
The XP APM allows for safe use of either standard or special high power EPT
ablation catheters.
Safety Features
The System’s built-in safety features include automatic shutoff for the following
conditions:
•
If accessing up to 50 W of RF power and measured tissue impedance is less than 50
Ω
.
•
If accessing up to 100 W of RF power and measured tissue impedance is less than 25
Ω
.
•
If measured tissue impedance exceeds 300
Ω
.
•
If maximum voltage or current limits are exceeded.
•
The Controller shuts off if the measured temperature exceeds 85
°
C for greater than 1
second, or if measured temperature exceeds the upper temperature limit selected in
the Power Control mode. This temperature is not the maximum tissue temperature.
The recorded temperature may be up to 15
°
C different from the maximum tissue
temperature. Do not set the temperature greater than 80
°
C.
