| 摘要 |
Devices and methods for performing an ablation procedure. One embodiment of a device includes a main body having proximal and distal end portions and first and second sides extending between the proximal and distal end portions. At least one ablation element is configured to apply an ablation energy or substance to tissue to be ablated. At least one electrode is movably positioned with respect to at least one of the sides of the main body, and each such electrode may be configured to assume a retracted position along that respective side of the main body, and an extended position extending beyond a perimeter of the main body. In one method embodiment, a method of performing ablation includes delivering an ablation energy or substance from an ablation device to a target area of tissue to form a lesion therein; delivering an electrical signal via said ablation device to non-ablated tissue on one side of the lesion; and monitoring non-ablated tissue on an opposite side of the lesion to assess whether electrical conduction through the lesion has occurred.
|
