Patent ID: 8677619

Claim:
A method of fabricating a stimulation lead for electrical stimulation of tissue of a patient, the method comprising: drawing core material through a central portion of a die, wherein the die comprises one or more features asymmetrically arranged about a circumference of the die; rotating a plurality of payout carriers as a group while releasing conductor wires from the plurality of payout carriers; rotating the die concurrently with rotation of the plurality of payout carriers; wrapping the released conductor wires about the core material to form a length of a lead body assembly, wherein the one or more features of the die direct the conductor wires from the plurality of carriers onto the core material in an axially repeating pattern of groups of closely spaced wires with each group separated by a distance larger than the spacing between adjacent wires within each group; forming a lead body using a portion of the length of the lead body assembly; and forming a stimulation lead from the lead body; wherein the die is held by two or more support struts that are mechanically coupled to respective support columns; wherein the support columns are coupled to a platform that is rotated at the same rate as a turntable that rotates the plurality of payout carriers.