An assembly for treating tissue at or near the sphincter includes a support structure for deployment in a tissue region, and a an electrode carried by the support structure. The support structure includes a spine with a lumen having an exit port, the electrode being deployable from the exit port. The...http://www.google.com/patents/US6440128?utm_source=gb-gplus-sharePatent US6440128 - Actively cooled electrode assemblies for forming lesions to treat dysfunction in sphincters and adjoining tissue regions
