Method and apparatus for R-F ablation
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United States of America Patent
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Jul 11, 1995
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N/A
app pub date -
Aug 27, 1993
filing date -
Aug 27, 1993
priority date (Note) -
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Abstract
An ablation catheter and a method of performing cardiac ablation. The catheter is provided with a hollow, helical electrode, which is screwed into cardiac tissue at a desired ablation site and connected to a source of R-F electrical energy to ablate the tissue adjacent the electrode. Prior to ablation, a conductive fluid may be injected through the hollow needle, both to provide for cooling of the tissue adjacent the needle and to increase the conductivity of the tissue in the area of the electrode.
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