Patent ID: 8090450

Claim:
An implantable medical electrical lead, the lead comprising: a) an elongate body having a length extending from a proximal region to a distal region, wherein in cross-section, transverses to its length, the distal region of the lead body comprises a planar upper side, a planar lower side, a radiused right side, and a radiused left side with the radiused right and left sides extending to and meeting with the planar upper and lower sides to provide the distal lead region with an oval-shape in cross-section; b) at least one first, center electrode supported by the lower side at the distal region of the lead. body; c) at least one second, right electrode supported by the right side at the distal region of the lead body; and d) at least one third, left electrode supported by the left side at the distal region of the lead body, e) wherein the second and third electrodes are of an opposite polarity in comparison to the first electrode, and f) wherein a portion of at least one of the second, and third electrodes extends onto the lower side of the lead adjacent to the opposite polarity first electrode, and g) wherein the at least one first, second and third electrodes are aligned with each other along a transverse axis, perpendicular to a longitudinal axis of the lead body.