Patent ID: 6978185

Claim:
An implantable cardiac lead, comprising: a) an elongated lead body having opposed proximal and distal end portions; b) at least one electrically conductive connector operatively associated with the proximal end portion of the lead body; c) at least one electrode operatively associated with the distal end portion of the lead body; and d) a conductor extending through the lead body for electrically connecting the at least one connector and the at least one electrode, the conductor having first and second pairs of adjacently wound electrically active elements and at least one electrically inactive element individually wound between the first and second adjacently wound pairs of electrically active elements and insulating the first and second adjacently wound pairs of electrically active elements from each other, wherein the electrically active elements in each pair of adjacently wound electrically active elements are adapted to convey current of common polarity, and wherein the first and second pairs of adjacently wound electrically active elements and the at least one individually wound electrically inactive element are wound together to form a single helically wound multifilar coil.