8-2
ClosureRFG Radiofrequency Generator
Technical Assistance
RF Treatment Difficulties – ClosureFast Endovenous Radiofrequency Ablation
(RFA) Catheter
ClosureFast
Catheter
Difficulty
Possible Cause
Corrective Action
Unable to
activate RF power
Body temperature
not measured
Verify that the catheter has been inserted into the
body and is properly positioned to begin RF
treatment. Press the Green Check Mark button to
proceed.
Connected catheter
is broken
Check the catheter connector to verify that it is
plugged in properly and is not broken. Replace
catheter.
Temperature low;
Tumescent fluid at
room temperature
surrounds tip of
catheter
Verify that the catheter has been inserted into the
body and is properly positioned to begin RF
treatment. Press the Green Check Mark button to
proceed.
Power high
Inadequate vessel
exsanguination
Verify that the catheter is properly positioned.
Check for flow, and employ or improve
compression techniques as necessary.
Temperature low
Inadequate vessel
exsanguination
Verify that the catheter is properly positioned.
Check for flow, and employ or improve
compression techniques as necessary.
Saline in catheter
connector
Check for presence of saline. If present, contact
Covidien Customer Service. (Caution: Take care
never to plug a wet catheter connector into the
receptacle, as this may damage the ClosureRFG
generator).
Catheter, cable, or
connector is
damaged
Check all connections, cable, and the catheter for
visible damage. Replace catheter.
Temperature
decreases as power is
applied
Replace catheter.
Temperature
high
Saline in catheter
connector
Check for presence of saline. If present, contact
Covidien Customer Service. (Caution: Take care
never to plug a wet catheter connector into the
receptacle, as this may damage the ClosureRFG
radiofrequency generator).
Non-uniform
temperature
Uneven compression
across full length of
heating element
Note catheter position with shaft markers. Check
catheter and replace if damaged. If not damaged,
insert catheter to desired location, Verify that the
catheter is properly positioned. Employ or improve
compression techniques as necessary.