Patent ID: 7184839

Claim:
A lead for delivering electrical signals to and receiving electrical signals from a patient, comprising: a solid inner conductor; a distal electrode electrically coupled to the inner conductor, the distal electrode having a coated surface; an anti-inflammatory agent applied to the distal electrode; at least one layer of insulation positioned around the inner conductor; a conductive coil positioned around and insulated from the inner conductor; a proximal electrode positioned around and electrically isolated from the inner conductor, the proximal electrode being electrically coupled to the conductive coil; and an insulating spacer positioned between and electrically isolating the proximal electrode and the distal electrode, wherein the insulating spacer includes a first plurality of engaging portions, the lead further comprising a coupling portion coupling the solid inner conductor within the lead and having a second plurality of engaging portions adopted to engage the first plurality of engaging portions to prevent rotation of the distal electrode within the lead.