Surgical ablation probe for forming a circumferential lesion
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United States of America Patent
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-
Jun 22, 2004
Grant Date -
Feb 14, 2002
app pub date -
Jun 8, 2001
filing date -
Jun 13, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This invention is a circumferential ablation device assembly which is adapted to form a circumferential conduction block in a pulmonary vein. The assembly generally comprises a handheld surgical ablation probe having a rigid shaft for insertion through a patient's chest and a circumferential ablation element mounted on the distal end portion of the shaft. The circumferential ablation element is adapted to ablate a circumferential region of tissue along a pulmonary vein wall which circumscribes the pulmonary vein lumen. The circumferential ablation element includes an expandable member for anchoring the distal end portion of the shaft in a body structure and an ultrasound transducer disposed within the expandable member for emitting ultrasonic energy to ablate the tissue in the pulmonary vein.
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