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• If needle sticking is experienced, use a slight, gentle twist of the needle followed by slow withdrawal�
• During needle removal, watch for the 10 mm wide Active Zone Indicator on the needle to guide needle
withdrawal� The Active Zone Indicator is a marked band along the needle shaft, located 20 mm distal to the
heating portion of the needle�
Cautery Control for 2.1 CX Needles
1� Press and hold the Thaw button to access Advanced Thaw Controls�
2� Press the Cautery function button on the Advanced Thaw Controls menu to open the Cautery Control Screen
(Screen 33)� A confirmation message appears (Screen 37)�
3� Press the desired needle port (A or B) on each channel containing a needle you wish to track ablate� Only one
needle per channel may activate the cautery function at a given time�
NOTE: A maximum of four (4) needles may use the cautery function simultaneously�
NOTE: The duration for the cautery function phase for 2�1 CX-type needles may be selected from 30 seconds
to 3 minutes, adjustable in 30 second increments� If a 2�1 CX-type is connected, a drop down menu will provide
cautery function duration choices�
4� Select the cautery function duration from the drop-down menu�
5� Press the Start button to initiate track ablation (cautery)�
• During the needle warming phase, the Cautery Control Screen will display a rotating warming indicator
(Screen 38)�
• When the cautery function threshold temperature is reached, Cauterization automatically begins�
o The timer will display Cauterizing (Screen 39)�
o The Cautery Control Screen will display the estimated temperature range for the needle shaft�
NOTE: The shaft temperature is displayed as a temperature range because tissue and procedural variables affect
the temperature�
• When the cautery function has terminated, the timer indicates the status as Stopped and the temperature
display indicates that the needle is Cooling�
6� If desired, press the Start button to re-initiate track ablation on additional sections of needle track�
7� After completing track ablation, carefully remove the needle�
WARNING: Ensure adequate thawing or cooling before attempting to remove needles from the patient�
• If needle sticking is experienced, use a slight, gentle twist of the needle followed by slow withdrawal�
• During needle removal, watch for the 10 mm wide Active Zone Indicator on the needle to guide needle
removal� The Active Zone Indicator is a marked band along the needle shaft, located 20 mm distal to the
heating portion of the needle�
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Black (K) ∆E ≤5.0
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