Ultrasound ablation catheter and method for its use
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United States of America Patent
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Nov 29, 2011
Grant Date -
Jun 8, 2006
app pub date -
Dec 30, 2005
filing date -
Jul 17, 2003
priority date (Note) -
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Abstract
Catheters and methods for epicardial ablation are provided. A suitable catheter comprises an elongated catheter body and an ultrasound transducer mounted at or near the distal end of the catheter body. The transducer has a front surface and an opposing back surface, wherein the transducer is positioned to transmit ultrasound energy toward tissue facing the front surface but not toward tissue facing the back surface. A sensor is mounted within the catheter near the ultrasound transducer for sensing a location and an orientation of the ultrasound transducer within a patient. A suitable method involves introducing the distal end of the catheter introducing into the pericardium of a patient. The transducer's front surface is positioned so that it generally faces tissue to be ablated, and the tissue is ablated with ultrasound energy generated by the transducer.
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