Catheter probe for treating focal atrial fibrillation in pulmonary veins
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United States of America Patent
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Apr 17, 2001
Issued Date -
N/A
app pub date -
Apr 1, 1999
filing date -
May 19, 1997
priority date (Note) -
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Abstract
An improved catheter system and methods for ablating cardiac tissues via a steerable ablation catheter having a liquid-permeable shaft, a liquid-permeable electrode, or a distal opening at its tip section with fluid infusion and irrigation for ablating intracardiac tissues by applying radiofrequency energy along with irrigated fluid in a pulmonary vein resulting in a controlled lesion for treating focal atrial fibrillation.
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