Patent ID: 8612022

Claim:
A catheter comprising: a control rod including an electrical conductor; and an intraluminal energy delivery device disposed at a distal end of the control rod and electrically coupled to the conductor, the energy delivery device including: a first metal electrode array comprising a plurality of flexible elongate struts extending from a proximal strut junction to a distal strut junction; wherein the first array has a tendency to transform from a radially constrained elongate configuration to a preformed radially expanded basket configuration; wherein, in the basket configuration, each of the plurality of struts has a main body that is bowed radially outwardly to form a peak between the first proximal strut junction and the distal strut junction; and wherein each strut peak defines an electrode region configured, when the first array is in the basket configuration, to deliver therapeutically-effective energy to tissue at a first treatment site within a blood vessel of a human patient; a second metal electrode array comprising a plurality of flexible elongate fingers extending distally from a finger junction; wherein the second array has a tendency to transform from a radially constrained elongate configuration to a preformed splayed configuration; wherein each of the plurality of fingers has a distal tip portion defining an electrode region configured, when the second array is in the splayed configuration, to deliver therapeutically-effective energy to tissue at a second treatment site within the blood vessel of the human patient; and a first metal connection portion flexibly joining the distal strut junction and the finger junction, wherein the intraluminal energy delivery device is formed from a single thin-walled metal tube without any joints.