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Needles
Symptom
A needle with a memory
chip is not recognized by the
system
During the freeze phase or
following a thaw phase, no
iceball or small iceball forms
on the needle(s) in a given
channel
Only some of the temperature
sensor locations on the MTS
needle are registered on the
Temperature Sensors display
MTS needle is connected but
temperature is not registered
on the Temperature Sensors
display
During the Needle Integrity
and Functionality test
bubbles are seen escaping
from the needle
Needle is bent or damaged
while attempting to unpack
or use it
Potential Causes / Solutions
1� Move the needle to a different port�
2� If the system still does not recognize the needle, select the needle type from the
drop-down menu displayed by the system�
3� If the needle is still not recognized, check the system's software version� (The
software version is displayed on the Startup Screen )� Contact Boston Scientific
Technical Assistance Center for further instructions upon completion of the procedure�
1� Perform the following steps in the order in which they are described:
• Stop freezing/thawing actions for all channels�
• Thaw the problematic needle(s) for at least one minute�
• Freeze the needle(s) to verify proper function�
2� If the problem persists, connect a new needle into a different channel and test
the needle� Continue the procedure with the newly tested needle�
3� Contact Boston Scientific Technical Assistance Center for further instructions
upon completion of the procedure�
1� Move the MTS needle to a different port�
2� Replace the MTS needle�
3� Contact Boston Scientific Technical Assistance Center for further instructions
upon completion of the procedure�
1� Move the MTS needle to a different port�
2� Replace the MTS needle�
3� Contact Boston Scientific Technical Assistance Center for further instructions
upon completion of the procedure�
WARNING: Do not use the needle.
• Disconnect the needle from the Visual-ICE Cryoablation System and segregate
the needle�
• Return the needle to Boston Scientific for evaluation�
• Use a new needle to continue the procedure�
• Test the new needle to confirm the integrity and functionality of the new needle�
• Contact Boston Scientific Technical Assistance Center for further instructions
upon completion of the procedure�
WARNING: Do not use the needle.
• Segregate the needle�
• Use a different needle to continue the procedure�
• Contact Boston Scientific Technical Assistance Center for further instructions
upon completion of the procedure�
77
Black (K) ∆E ≤5.0
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