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US 2011/0257648 A1Published application
Ablation catheters
AssigneeThe Regents of the University of Michigan
InventorsHakan Oral, Fred Morady
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Abstract
The present invention relates generally to multifunctional catheters for performing ablation procedures, and more particularly to ablation catheters utilized in the treatment of atrial fibrillation and other cardiac disorders. The present invention eliminates many of the problems associated with previous ablation catheters by providing an ablation treatment not dependent upon continuous lesions.
Claims11
A tissue ablation device comprising:
- an elongate catheter body, wherein said elongate catheter body comprises a proximal end and a distal end, and
- an array of ablation elements mounted to a plurality of arms that extend radially from a top portion of a center post extending from the distal end of said catheter body, the array of ablation elements being movable between an expanded configuration and a contracted configuration, the ablation elements being substantially coplanar in the expanded configuration, each array of ablation elements includes at least two sets of at least two ablation elements, wherein the at least two sets are separated by a first gap distance and the at least two ablation elements are separated by a second gap distance smaller than the first gap distance;
- and
- wherein the array of ablation elements are configured to contact a tissue region and produce a shaped ablation lesion within the tissue region.
1 more element
Dependencies are inferred from the claim text.