Patent ID: 8050773
Filing Date: 2011-11-01
Classification: A61N

Abstract:
1. A medical stimulation lead comprising: an elongated lead body biased in directions substantially limited to one plane, the elongated lead body comprising a substantially rounded cross-section formed by a first biased portion and a second biased portion in an unexpanded configuration, wherein in the unexpanded configuration the first biased portion forms a first section of the substantially rounded cross-section and the second biased portion forms a second section of the substantially rounded cross section, and wherein the first biased portion is biased in a first direction substantially within the one plane, and the second biased portion is biased in a second direction substantially within the one plane and substantially opposite the first direction; a plurality of electrodes connected to the elongated lead body for conducting current; and a restraining body removably connected to the elongated lead body releasably exerting a force substantially counter to the biases of the first biased portion and the second biased portion, releasably maintaining the substantially rounded cross-section of the elongated lead body in the unexpanded configuration, wherein removal of the restraining body permits the first biased portion and the second biased portion of the elongated lead body to expand into an expanded configuration, dividing the substantially rounded cross-section; wherein the first biased portion and the second biased portion of the medical stimulation lead are configured to stabilize the medical stimulation lead in an epidural space adjacent to a spinal cord when the first and second biased portions are in the expanded configuration.