Precision ablating method

摘要

Methods of ablating tissue in an alimentary tract are provided. The methods include advancing an ablation structure into an alimentary tract while supporting the ablation structure with an endoscope. The methods further include a step of moving at least part of the ablation structure with respect to the endoscope and toward a tissue surface, before activating the ablation structure to ablate a tissue surface.

主权项

1. A method of ablating tissue in an alimentary tract comprising:
advancing an ablation structure through a channel of an endoscope and into the alimentary tract, wherein the ablation structure is disposed on an arcuate frame and includes an arcuate bipolar electrode array configured to selectively ablate a portion of the alimentary tract less than a full circumferential section of the alimentary tract, and wherein the arcuate frame is configured to expand from a dimensionally compacted configuration upon exiting the endoscope channel; supporting the ablation structure with the endoscope within the alimentary tract; moving at least part of the ablation structure toward a tissue surface; and activating the ablation structure to ablate the tissue surface less than the full circumferential section of the alimentary tract.