Patent ID: 9554848
Date: 2017-01-31
CPC Classifications: A61B

Claim:
1. A catheter assembly, comprising: an elongated body having a proximal region and a distal region extending along a longitudinal axis, wherein the distal region of the body is configured for intravascular delivery to a body lumen of a human patient; a pre-shaped spiral structure associated with the distal region of the elongated body, wherein the spiral structure is transformable between a low-profile configuration and an expanded configuration; and a plurality of electrodes spaced apart along the spiral structure, wherein each of the electrodes comprises a wire wound about a corresponding length of the spiral structure, wherein, when the spiral structure is in the expanded configuration, the spiral structure comprises a plurality of loops longitudinally spaced apart from each other and extending lengthwise along a central loop axis parallel with the longitudinal axis of the elongated body, and wherein the electrodes are disposed along the loops and configured to apply energy in a lesion pattern along a length of the body lumen of the human patient.