SYSTEMS AND METHODS FOR MAKING AND USING SEGMENTED TIP ELECTRODES FOR LEADS OF ELECTRICAL STIMULATION SYSTEMS
First Claim
1. An implantable electrical stimulation lead, comprising:
- a lead body having a proximal end portion, a distal end portion, a distal tip, a longitudinal length, and a longitudinal surface;
a set of segmented tip electrodes that are disposed circumferentially about the distal tip of the lead body and that are electrically-isolated from each other, each segmented tip electrode of the set of segmented tip electrodes having an inner surface and an opposing outer stimulating surface exposed along the longitudinal surface of the lead body, wherein a portion of the lead body is disposed against the inner surfaces of each of the segmented tip electrodes and circumferentially between each of the segmented tip electrodes;
at least one non-tip electrode disposed along the distal end portion of the lead body proximal to the set of segmented tip electrodes;
a plurality of terminals disposed along the proximal end portion of the lead body; and
a plurality of conductors, each conductor of the plurality of conductors electrically coupling the plurality of terminals to each of the segmented tip electrodes and the at least one non-tip electrode.
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Accused Products
Abstract
An implantable electrical stimulation lead includes a lead body having a proximal end portion, a distal end portion, a distal tip, a longitudinal length, and a longitudinal surface. Segmented tip electrodes are disposed circumferentially about the distal tip of the lead body and are electrically-isolated from each other. Each segmented tip electrode has an inner surface and an opposing outer stimulating surface exposed along the longitudinal surface of the lead body. A portion of the lead body is disposed against the inner surfaces of each of the segmented tip electrodes and circumferentially between each of the segmented tip electrodes. A non-tip electrode is disposed along the distal end portion of the lead body proximal to the segmented tip electrodes. Terminals are disposed along the proximal end portion of the lead body. Conductors electrically couple the terminals to the segmented tip electrodes and to the non-tip electrode.
87 Citations
20 Claims
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1. An implantable electrical stimulation lead, comprising:
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a lead body having a proximal end portion, a distal end portion, a distal tip, a longitudinal length, and a longitudinal surface; a set of segmented tip electrodes that are disposed circumferentially about the distal tip of the lead body and that are electrically-isolated from each other, each segmented tip electrode of the set of segmented tip electrodes having an inner surface and an opposing outer stimulating surface exposed along the longitudinal surface of the lead body, wherein a portion of the lead body is disposed against the inner surfaces of each of the segmented tip electrodes and circumferentially between each of the segmented tip electrodes; at least one non-tip electrode disposed along the distal end portion of the lead body proximal to the set of segmented tip electrodes; a plurality of terminals disposed along the proximal end portion of the lead body; and a plurality of conductors, each conductor of the plurality of conductors electrically coupling the plurality of terminals to each of the segmented tip electrodes and the at least one non-tip electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of making a stimulation lead, the method comprising:
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disposing a pre-tip-electrode along a distal tip of a lead body, the pre-tip-electrode comprising a pre-tip-electrode body comprising an outer surface, an inner surface opposite the outer surface, a proximal end portion, and a distal end portion, the pre-tip-electrode body comprising a ring-shaped base portion disposed along the proximal end portion of the pre-tip-electrode body, and a plurality of circumferentially-spaced-apart segmented tip electrodes coupled to the ring-shaped base portion and extending distally therefrom, the segmented tip electrodes each curving inwardly as the segmented tip electrodes extend distally from the ring-shaped base portion such that the pre-tip-electrode body forms a substantially dome-shaped structure; coupling the plurality of circumferentially-spaced-apart segmented tip electrodes to a plurality of terminals disposed along a proximal end portion of the lead body; and placing non-conductive material against the inner surfaces of the pre-tip-electrode body and between the circumferentially-spaced-apart segmented tip electrodes to facilitate retention of the pre-tip-electrode with the lead body. - View Dependent Claims (17, 18)
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19. A pre-tip-electrode for an electrical stimulation lead, the pre-tip-electrode comprising:
a pre-tip-electrode body comprising an outer surface, an inner surface opposite the outer surface, a proximal end portion, and a distal end portion, the pre-tip-electrode body comprising a ring-shaped base portion disposed along the proximal end portion of the pre-tip-electrode body, and a plurality of circumferentially-spaced-apart segmented tip electrodes coupled to the ring-shaped base portion and extending distally therefrom, the segmented tip electrodes each curving inwardly as the segmented tip electrodes extend distally from the ring-shaped base portion such that the pre-tip-electrode body forms a substantially dome-shaped structure. - View Dependent Claims (20)
Specification