Pre-molded sub-assemblies for implantable medical leads

An implantable medical lead configured to conduct an electrical signal between an implantable medical device and tissue of a patient, the implantable medical lead comprising:

• a plurality of elongated conductors;
• a proximal end comprising a plurality of connectors, each of the connectors electrically connected to one of the conductors, wherein each of the connectors is configured to electrically connect the one of the conductors to the implantable medical device;
• a distal end comprising a plurality of electrodes, each of the electrodes electrically connected to one of the conductors, wherein each of the electrodes is configured to electrically connect the one of the conductors to the tissue;
• and
• a plurality of pre-molded cylindrical sub-assemblies, each of the sub-assemblies comprising:
• a cylindrical conductive element formed from a conductive material to define a substantially continuous interior surface and a substantially continuous exterior surface, wherein the cylindrical conductive element is either one of the plurality of connectors or one of the plurality of electrodes;
• and
• an insulative element formed from an insulative material molded onto the interior surface of the cylindrical conductive element, wherein an interior surface of the insulative element defines a lumen of the pre-molded cylindrical sub-assembly configured to receive at least one of the elongated conductors of the implantable medical lead, and the cylindrical conductive element is configured to be electrically connected to one of the elongated conductors within the lumen;
• wherein the lumen defined by at least one insulative element is configured to receive more than one of the elongated conductors.