Surgical method and apparatus for treating atrial fibrillation

Details Surgical method and apparatus for treating atrial fibrillation Surgical method and apparatus for treating atrial fibrillation

2006-01-06

2010-06-22

Gibson, Roy D (Department: 3739)

Surgery

Instruments

Cyrogenic application

C606S041000

Reexamination Certificate

active

07740627

ABSTRACT:
The present invention advantageously provides a method and system for cryogenically ablating large areas of tissue within the left atrium. In an exemplary embodiment a cryotherapy device includes a catheter body, a proximal end and a distal end; a first lumen; a second lumen; and an ablation element expandable from a first diameter to a second diameter, the ablation element having a surface portion that conforms to the uneven surface topography of the cardiac tissue. The ablation element can include one or more deformable balloon and/or flexible elements. The surface of the balloon can further be shaped by regulation of pressure within the one or more balloons. In an exemplary method, a tissue ablation device is provided and tissue in the left atrium is ablated with the device, whereby the ablation is created by freezing tissue.

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