Systems and methods for making and using leads for electrical stimulation systems with improved RF compatibility
First Claim
1. An implantable electrical stimulation lead comprising:
- a lead body having a distal end, a proximal end, and a longitudinal length;
a plurality of electrodes disposed on the distal end of the lead body;
a plurality of terminals disposed on the proximal end of the lead body;
a liner extending along the longitudinal length of the lead body, the liner having at least two different outer diameters; and
a plurality of conductors coiled around the liner and electrically coupling the plurality of electrodes to at least one of the terminals, the plurality of conductors comprisinga first conductor comprising a plurality of alternating first coiled regions and second coiled regions, wherein the first coiled regions have tighter pitches than the second coiled regions, anda second conductor comprising a plurality of alternating third coiled regions and fourth coiled regions, wherein the third coiled regions have tighter pitches than the fourth coiled regions;
wherein the plurality of conductors are arranged into repeating adjacent winding geometries disposed along the longitudinal length of the lead body, the repeating adjacent winding geometries each comprising one of the plurality of first coiled regions and one of the plurality of third coiled regions axially disposed adjacent to one another.
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Abstract
An implantable electrical stimulation lead includes electrodes and terminals disposed on opposing ends of the lead. A liner extends along a longitudinal length of the lead and has at least two different outer diameters. Conductors are coiled around the liner and electrically-couple the electrodes to the terminals. The conductors include a first conductor and a second conductor. The first conductor includes alternating first and second coiled regions. The first coiled regions have tighter pitches than the second coiled regions. The second conductor includes alternating third and fourth coiled regions. The third coiled regions have tighter pitches than the fourth coiled regions. The conductors are arranged into repeating adjacent winding geometries disposed along the longitudinal length of the lead. The repeating adjacent winding geometries each include one of the first coiled regions and one of the third coiled regions axially disposed adjacent to one another.
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Citations
19 Claims
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1. An implantable electrical stimulation lead comprising:
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a lead body having a distal end, a proximal end, and a longitudinal length; a plurality of electrodes disposed on the distal end of the lead body; a plurality of terminals disposed on the proximal end of the lead body; a liner extending along the longitudinal length of the lead body, the liner having at least two different outer diameters; and a plurality of conductors coiled around the liner and electrically coupling the plurality of electrodes to at least one of the terminals, the plurality of conductors comprising a first conductor comprising a plurality of alternating first coiled regions and second coiled regions, wherein the first coiled regions have tighter pitches than the second coiled regions, and a second conductor comprising a plurality of alternating third coiled regions and fourth coiled regions, wherein the third coiled regions have tighter pitches than the fourth coiled regions; wherein the plurality of conductors are arranged into repeating adjacent winding geometries disposed along the longitudinal length of the lead body, the repeating adjacent winding geometries each comprising one of the plurality of first coiled regions and one of the plurality of third coiled regions axially disposed adjacent to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implantable lead comprising:
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an elongated member having a distal end, a proximal end, and a longitudinal length; a plurality of electrodes disposed on the distal end of the elongated member; a plurality of terminals disposed on the proximal end of the elongated member; a liner extending along the longitudinal length of the elongated member, the liner having alternating first-diameter regions with first diameters and second-diameter regions with second diameters that are larger than the first diameters; and a plurality of conductors coiled around the liner and electrically coupling the plurality of electrodes to the plurality of terminals, wherein the plurality of conductors each comprise a plurality of common-mode current-suppression units, the plurality of common-mode current-suppression units each comprising a first conductor segment extending along the elongated member from a beginning point to a first position, a second conductor segment extending along the elongated member from the first position to a second position, and a third conductor segment extending along the elongated member from the second position to an endpoint, wherein the first position is between the second position and the endpoint, and the second position is between the beginning point and the first position; wherein each of the plurality of common-mode current-suppression units is arranged into a single-layer region and an axially-adjacent multi-layer region. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification