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Instruction
7� Snap the fuse holder back into the power inlet� Replace the retention
clip, plug in the power cord, and tighten the thumb screw on the
retention clip�
8� Call Boston Scientific Technical Assistance Center to schedule a
service call to determine the cause of the blown fuses, to determine if
service is required and to provide replacement fuses�
Gas Issues
Symptom
The Visual-ICE Cryoablation
System does not allow
testing of a needle in a
locked channel
Needle is not freezing
during the Needle Integrity
and Functionality Test
No helium gas is delivered
to the needle
Black (K) ∆E ≤5.0
Potential Causes / Solutions
The Argon Shutoff Valve may be in the Argon OFF position� Verify that the Argon
Shutoff Valve (Figure 2) is in the Argon ON position to allow sufficient gas flow�
Verify that the gas cylinder valve is fully open�
1� The argon cylinder valve may be closed� Open the gas cylinder valve by turning
the gas cylinder valve counterclockwise to allow sufficient gas flow� Verify that
appropriate pressure is displayed on the Gas Indicator�
2� Confirm that the argon cylinder is connected to the argon inlet�
3� The needle may be clogged (by dust or ice)� Try to test it again�
4� If the needle still does not freeze
• Press the Stop button to stop all activity on the channel�
• Hold the needle connector firmly with one hand and unlock the channel to
disconnect the needle�
• Move the needle to a different channel and run the test again�
NOTE: If only one needle is connected to the channel, there may be some residual
pressure behind the needle connector�
5� If the problem persists, replace the needle with a new needle and contact
Boston Scientific Technical Assistance Center�
1� The helium gas cylinder valve may be closed� Open the gas cylinder valve
by turning the valve counterclockwise to allow sufficient gas flow� Verify that
appropriate pressure is displayed on the Gas Indicator�
2� The needle may be clogged�
• Press the Stop button to stop all activity on the channel�
• Hold the needle connector firmly with one hand and unlock the channel to
disconnect the needle�
• Move the needle to a different channel and run the test again�
NOTE: If only one needle is connected to the system, there may be some residual
pressure behind the needle connector�
3� If the problem persists, replace the needle with a new needle�
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