Ultrasonic marked cardiac ablation catheter
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United States of America Patent
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Nov 24, 1998
Grant Date -
N/A
app pub date -
Jun 21, 1996
filing date -
Dec 22, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for therapy of cardiac arrythmias is provided which uses a directional electric field applied via ablation electrode for cardiac ablation together with an ultrasonic imaging system including an ultrasonic marking transducer mounted fixedly in the vicinity of the ablation electrode and having ultrasonic sensitivity characteristics either in the same direction as the ablation field or in some other direction determined by a certain defined angle relative to the direction of the ablation field.
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