Spinal cord stimulation paddle lead and method of making the same
First Claim
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1. A method, comprising:
- providing a lead body having a plurality of conductive wires, wherein the plurality of conductive wires are helically wound at a wire spacing pitch;
providing a stimulation paddle, the stimulation paddle comprising a metal layer between insulative layers, wherein a plurality of electrically isolated metal traces are patterned in the metal layer, each metal trace comprises a contact and an electrode exposed through one or several insulative layers, and the contacts of the metal traces are disposed together on the stimulation paddle and spaced according to the wire spacing pitch;
placing the lead body in contact with the stimulation paddle such that an exposed segment of the lead body abuts the contacts of the metal traces; and
transmitting energy onto each contact so that the respective contact becomes welded to an abutting conductive wire of the medical lead thereby electrically coupling the abutting conductive wire to a respective electrode of the stimulation paddle.
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Abstract
In one embodiment, a method of fabricating an implantable stimulation paddle comprises: providing a sheet of conductive material coupled to a first insulative layer; laser removing portions of the conductive material to form a pattern of conductive material, the pattern of conductive material including a plurality of isolated metal traces; providing a second insulative layer over the pattern of conductive material so that the pattern of conductive material is interposed between the first and second insulative layers; and exposing portions of the metal traces to form electrodes on the paddle for delivering electrical stimulation.
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Citations
19 Claims
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1. A method, comprising:
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providing a lead body having a plurality of conductive wires, wherein the plurality of conductive wires are helically wound at a wire spacing pitch; providing a stimulation paddle, the stimulation paddle comprising a metal layer between insulative layers, wherein a plurality of electrically isolated metal traces are patterned in the metal layer, each metal trace comprises a contact and an electrode exposed through one or several insulative layers, and the contacts of the metal traces are disposed together on the stimulation paddle and spaced according to the wire spacing pitch; placing the lead body in contact with the stimulation paddle such that an exposed segment of the lead body abuts the contacts of the metal traces; and transmitting energy onto each contact so that the respective contact becomes welded to an abutting conductive wire of the medical lead thereby electrically coupling the abutting conductive wire to a respective electrode of the stimulation paddle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of fabricating an implantable stimulation lead for applying electrical pulses to tissue of a patient, comprising:
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providing a lead body having a plurality of conductive wires, wherein the plurality of conductive wires are helically wound at a wire spacing pitch; providing a stimulation paddle, the stimulation paddle comprising a metal layer between insulative layers, wherein a plurality of electrically isolated continuous metal traces are patterned in the metal layer, each metal trace comprises a contact and an electrode exposed through one or several insulative layers, and the contacts of the metal traces are disposed together on at a proximal portion of the stimulation paddle and spaced, at the proximal portion, according to the wire spacing pitch of the lead body; placing the lead body in contact with the stimulation paddle such that (i) an exposed segment of the lead body abuts the contacts of the metal traces and (ii) each paddle electrical contact is co-aligned with and oriented coincidentally to a unique conductive wire of plurality of conductive wires of the lead body; and transmitting energy onto each contact so that the respective contact becomes welded to an abutting conductive wire of the medical lead thereby electrically coupling the abutting conductive wire to a respective electrode of the stimulation paddle. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification