Systems and methods for making and using improved leads for electrical stimulation systems

摘要

A method for manufacturing a lead includes forming an elongated multi-lumen conductor guide defining a central stylet lumen and a plurality of conductor lumens arranged around the stylet lumen. The multi-lumen conductor guide is twisted to form at least one helical section where the plurality of conductor lumens each forms a helical pathway around the stylet lumen. Each of the helical pathways of the at least one helical section has a pitch that is no less than 0.04 turns per centimeter.

主权项

1. A lead for providing deep brain stimulation the lead comprising:
a lead body having a distal end, a proximal end, and a longitudinal length, the lead body comprising a multi-lumen conductor guide having an outer surface and defining a central stylet lumen configured and arranged for receiving a stylet and a plurality of conductor lumens disposed around the central stylet lumen in a ring, each conductor lumen configured and arranged to receive at least one conductor, wherein the plurality of conductor lumens are completely inset from the outer surface of the multi-lumen conductor guide, wherein at least a portion of the multi-lumen conductor guide is twisted such that the multi-lumen conductor guide forms at least a first helical section and a second helical section where each of the plurality of conductor lumens forms a helical pathway around the stylet lumen, wherein each of the helical pathways of the first and second helical sections has a pitch that is no less than 0.04 turns per centimeter, wherein the multi-lumen conductor guide further forms a first straight section disposed between the first helical section and the second helical section; a plurality of electrodes disposed on the distal end of the lead body; a plurality of lead terminals disposed on the proximal end of the lead body; and a plurality of conductors electrically coupling the plurality of electrodes to the plurality of lead terminals, wherein the plurality of conductors extend along the longitudinal length of the leady body within the plurality of conductor lumens, wherein the multi-lumen conductor guide extends the entire longitudinal length of the lead body from the electrodes to the terminals.