MEDICAL LEADS WITH SEGMENTED ELECTRODES AND METHODS OF FABRICATION THEREOF
First Claim
1. A method of fabrication of a stimulation lead comprising a plurality of segmented electrodes for stimulation of tissue of a patient, the method comprising:
- providing a substrate comprising (i) a substantially cylindrical body and (ii) a plurality of projections extending radially from the cylindrical body;
coating the substrate with first conductive material;
patterning the first conductive material on the cylindrical body into a plurality of traces, the plurality of traces extending along the cylindrical body and electrically contacting conductive material about the plurality of projections;
providing an insulative layer over the traces;
coating the insulative layer over the traces with second conductive material;
patterning the second conductive material to form at least a plurality of electrode surfaces including a plurality of segmented electrodes, the segmented electrodes being in electrical contact with conductive material on projections of the plurality of projections; and
electrically coupling the plurality of traces to conductive wires of a lead body.
1 Assignment
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Accused Products
Abstract
In one embodiment, a method of fabrication of a stimulation lead comprising a plurality of segmented electrodes for stimulation of tissue of a patient, the method comprises: providing a substrate comprising (i) a substantially cylindrical body and (ii) a plurality of projections extending radially from the cylindrical body; coating the substrate with first conductive material; patterning the first conductive material on the cylindrical body into a plurality of traces, the plurality of traces extending along the cylindrical body and electrically contacting conductive material about the plurality of projections; providing an insulative layer over the traces; coating the insulative layer over the traces with second conductive material; patterning the second conductive material to form at least a plurality of electrode surfaces including a plurality of segmented electrodes, the segmented electrodes being in electrical contact with conductive material on projections of the plurality of projections; and electrically coupling the plurality of traces to conductive wires of a lead body.
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Citations
20 Claims
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1. A method of fabrication of a stimulation lead comprising a plurality of segmented electrodes for stimulation of tissue of a patient, the method comprising:
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providing a substrate comprising (i) a substantially cylindrical body and (ii) a plurality of projections extending radially from the cylindrical body; coating the substrate with first conductive material; patterning the first conductive material on the cylindrical body into a plurality of traces, the plurality of traces extending along the cylindrical body and electrically contacting conductive material about the plurality of projections; providing an insulative layer over the traces; coating the insulative layer over the traces with second conductive material; patterning the second conductive material to form at least a plurality of electrode surfaces including a plurality of segmented electrodes, the segmented electrodes being in electrical contact with conductive material on projections of the plurality of projections; and electrically coupling the plurality of traces to conductive wires of a lead body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stimulation lead for electrically stimulating tissue of a patient, comprising:
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a lead body comprising a plurality of conductor wires disposed within insulative material; a plurality of terminals disposed at a proximal end of the lead body, the plurality of terminals electrically coupled to the plurality of conductor wires; and a stimulation tip, disposed at a distal end of the lead body, the stimulation tip comprising; (i) a substrate comprising a substantially cylindrical body and a plurality of projections extending radially from the cylindrical body, the plurality of projections being coated with conductive material; (ii) a plurality of traces extending along the cylindrical body and electrically contacting conductive material about the plurality of projections, wherein the plurality of traces are electrically coupled to the plurality of conductors wires; (iii) an insulative layer disposed over the traces; and (iv) a plurality of electrode surfaces disposed over the insulative layer, the plurality of electrode surfaces including a plurality of segmented electrodes, the segmented electrodes being in electrical contact with conductive material on projections of the plurality of projections. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system for electrical stimulation of tissue of a patient, the system:
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an implantable pulse generator for generating electrical pulses and for providing the pulses to one or more stimulation leads; and at least one stimulation lead comprising; (a) a lead body comprising a plurality of conductor wires disposed within insulative material; (b) a plurality of terminals disposed at a proximal end of the lead body, the plurality of terminals electrically coupled to the plurality of conductor wires; and (c) a stimulation tip, disposed at a distal end of the lead body, the stimulation tip comprising; (i) a substrate comprising a substantially cylindrical body and a plurality of projections extending radially from the cylindrical body, the plurality of projections being coated with conductive material; (ii) a plurality of traces extending along the cylindrical body and electrically contacting conductive material about the plurality of projections, wherein the plurality of traces are electrically coupled to the plurality of conductors wires; (iii) an insulative layer disposed over the traces; and (iv) a plurality of electrode surfaces disposed over the insulative layer, the plurality of electrode surfaces including a plurality of segmented electrodes, the segmented electrodes being in electrical contact with conductive material on projections of the plurality of projections. - View Dependent Claims (19, 20)
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Specification