Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall
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United States of America Patent
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Nov 25, 2003
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N/A
app pub date -
Nov 5, 1999
filing date -
Jul 8, 1997
priority date (Note) -
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Abstract
This invention is related to a tissue ablation system and method that treats atrial arrhythmia by ablating a circumferential region of tissue at a location where a pulmonary vein extends from an atrium. The system includes a circumferential ablation member with an ablation element and also includes a delivery assembly for delivering the ablation member to the location. The circumferential ablation member is generally adjustable between different configurations to allow both the delivery through a delivery sheath into the atrium and the ablative coupling between the ablation element and the circumferential region of tissue.
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