Methods for RF ablation using jet injection of conductive fluid
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United States of America Patent
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Nov 9, 2004
Grant Date -
Nov 20, 2003
app pub date -
May 20, 2002
filing date -
May 20, 2002
priority date (Note) -
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Abstract
A method of preparing and ablating heart tissue includes a pre-treatment step of delivering a jet of conductive fluid to a portion of heart tissue. The conductive fluid is delivered using an injection device such as a hand-held jet injector, probe, or catheter. After injecting the heart tissue with the conductive fluid, RF energy is delivered to the site of the injection to form a lesion. The method enables a physician to produce large and accurately placed lesions within the treated tissue.
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