Patent ID: 7158837

Claim:
A low profile implantable cardiac lead, comprising: a) an elongated lead body having a proximal end portion and a distal end portion, the elongated lead body having an axial lumen therethrough; b) an electrically conductive connector operatively associated with the proximal end of the lead body; c) a helically wound conductor coil disposed within the axial lumen of the lead body and including at least two conducting filars in electrical communication with the electrically conductive connector; d) at least one helically wound defibrillation coil disposed between the proximal and distal end portions and radially outward of the axial lumen for delivering electrical energy to cardiac tissue; e) at least one cylindrical support hull disposed within the lead body radially outward of the conductor coil and radially inward of the at least one defibrillation coil, wherein a filar of the at least two conducting filars and a filar of the at least one defibrillation coil are wrapped about an outer periphery of the at least one support hull to facilitate an electrical connection between the at least one conductor and the at least one defibrillation coil; and f) a tip assembly connected to the distal end portion of the lead body and in electrical communication with the conductor coil, the tip assembly having a pacing ring electrode.