Patent ID: 7120504
Filing Date: 2006-10-10
Classification: A61N

Abstract:
1. A bipolar cardiac lead, comprising: an elongated lead body having opposed proximal and distal end portions, and defining a longitudinal axis; an electrode housing operatively associated with the distal end portion of the lead body for stimulating cardiac tissue; a conductor coil extending through a lumen in the elongated lead body, the conductor coil being electrically connected to at least a connective portion of the electrode housing; a helical fixation screw disposed within the electrode housing along an axis extending generally perpendicular to the longitudinal axis of the lead body and mounted for movement between an axially retracted position and an axially extended position for affixing the electrode housing to the cardiac tissue, wherein the helical fixation screw is electrically connected to the connective portion of the electrode housing; and an insulating tube positioned radially outside of the helical fixation screw in the electrode housing for eluting at least one drug.