Patent ID: 8774939
Filing Date: 2014-07-08
Classification: A61N,H01R,Y10T

Abstract:
1. An implantable lead having a distal end portion and a proximal end portion and comprising: an inner core with a proximal end portion, a distal end portion, an outer surface, and a longitudinal length, the inner core defining a central lumen and a plurality of inner-core conductor lumens; a plurality of electrodes disposed along the distal end portion of the lead; a plurality of terminals disposed along the proximal end portion of the lead; a plurality of coiled conductor guides wrapped around at least a portion of the inner core, each coiled conductor guide having a first end and a second end, each coiled conductor guide defining a plurality of helical lumens, wherein the plurality of coiled conductor guides are spaced apart from one another along the longitudinal length of the inner core; and a plurality of conductors, each conductor electrically coupling at least one of the plurality of electrodes to at least one of the plurality of terminals, wherein each of the plurality of conductors is encased in conductor insulation that is separate and distinct from each of the inner core and the plurality of coiled conductor guides, wherein at least one of the plurality of conductors is a first conductor that comprises a plurality of units, each unit comprising wherein the first conductor extends along at least one of the plurality of inner-core conductor lumens and at least one of the plurality of helical lumens.