Radio-frequency-based catheter system with improved deflection and steering mechanisms
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United States of America Patent
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-
Feb 28, 2006
Grant Date -
Jun 19, 2003
app pub date -
Nov 27, 2002
filing date -
Nov 29, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A RF catheter system includes a catheter with a proximal portion, a distal portion having a distal end and a lumen extending from the proximal portion to the distal portion. Inner and outer coaxially aligned conductors extend within the catheter and are coaxial with the lumen. A deflectable catheter guide is disposed within the catheter lumen and extends proximally within the catheter lumen and terminates distally of the distal end of the catheter to define a biological ablation pathway. A radio-frequency antenna is disposed at the distal portion of the catheter and is in electrical communication with the inner and outer coaxially aligned conductors. The radio-frequency antenna is adaptable to receive and transmit radio-frequency energy for ablating biological tissue along the ablation pathway.
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