Patent ID: 8292885

Claim:
A cutting radiofrequency catheter assembly comprising: at least one wire electrode, said at least one wire electrode forming a ring; an insulator disposed partially around a longitudinal axis of said at least one wire electrode along the ring, said insulator covering said portion of said at least one wire electrode along the ring; and an exposed surface of said at least one wire electrode formed where said insulator does not cover said at least one wire electrode, said exposed surface extending only partially around a circumference of the wire electrode, wherein said exposed surface extends from a first edge surface to a second edge surface, wherein said second edge surface is separated from said first edge surface-to define a gap between said first edge surface and said second edge surface so that upon using said cutting radiofrequency catheter to fenestrate a graft cloth, a cut portion of said graft cloth has an attachment region corresponding to said gap, and wherein an outer diameter of a loop formed by said exposed surface is greater than three millimeters.