Apparatus and method for RF ablation into conductive fluid-infused tissue
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United States of America Patent
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Issued Date -
Jan 8, 2004
app pub date -
Jul 2, 2002
filing date -
Jul 2, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A radiofrequency (RF) ablation device includes a cannula having a proximal end, a distal end, and a lumen extending therethrough. At least one electrode having a lumen and plurality of ports is disposed within the cannula. The electrode can reciprocate between a proximally retracted position and a distally extended position. The at least one electrode is coupled to a source of pressurized conductive fluid. The RF ablation device is used to pre-treat a region of tissue with a high-pressure injection of conductive fluid prior to the delivery of RF energy to the tissue. The pre-treatment step aids in creating extremely large lesions within the tissue.
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