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US 5,385,148 AGranted
Cardiac imaging and ablation catheter
AssigneeThe Regents of the University of California
InventorsMichael D. Lesh, Patrick M. Owens, Jerome Jackson
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Abstract
Method and apparatus for ablation of cardiac tissue includes a catheter (2, 60) having an elongated flexible body (6, 64), a tissue characterization assembly including a transducer (34) at the distal end (16) of the body and a tissue ablation assembly having a tissue ablation tip (32) at the distal end of the body. The tissue ablation tip is positioned adjacent the tissue to be ablated using the visualization assembly and then activated.
Claims4
A method for ablation of arrythmogenic cardiac tissue comprising:
- selecting a catheter comprising:
- an elongated flexible body having a proximal end and a distal end,
- an ultrasound assembly having a transducer located at the distal end of the body, and
- a tissue ablation means;
- introducing the distal end of the catheter into a cardiac chamber comprising the arrythmogenic cardiac tissue to be ablated;
- using the ultrasound assembly to position the tissue ablation means within an effective range of the arrythmogenic cardiac tissue to be ablated;
- and
- activating the tissue ablation means.
5 more elements
Dependencies are inferred from the claim text.