TISSUE ABLATION DEVICE ASSEMBLY AND METHOD FOR ELECTRICALLY ISOLATING A PULMONARY VEIN OSTIUM FROM AN ATRIAL WALL

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...

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Hauptverfasser: LESH, MICHAEL D, PEACOCK, JAMES C., III, CARCAMO, EDWARD L, MAGUIRE, MARK A
Format: Patent
Sprache:eng ; fre
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Zusammenfassung: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 bot h the delivery through a delivery sheath into the atrium and the ablative coupling between the ablation element and the circumferential region of tissue.