Multi-electrode leads for brain implantation
First Claim
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1. A method of forming a multi-electrode lead, the method including the steps of:
- a. providing an elongated core having;
(1) a length extending between a proximal end and a distal end, and(2) a nonconductive exterior surface;
b. forming conductive tracks on the core'"'"'s exterior surface, wherein the step of forming the conductive tracks includes the steps of;
i. forming a conductive layer about the core'"'"'s exterior surface, andii. removing portions of the conductive layer to define the conductive tracks,and wherein the tracks;
(1) extending along the core'"'"'s exterior surface from locations nearer the core'"'"'s proximal end, and(2) terminating in electrodes at locations nearer the core'"'"'s distal end;
c. forming a nonconductive outer layer covering;
(1) the tracks, except for the electrodes thereon, and(2) the core'"'"'s exterior surface adjacent the tracks.
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Accused Products
Abstract
A lead for use in Deep Brain Stimulation (DBS) and similar applications has a rigid lead tip with multiple electrodes thereon. The electrodes are formed by coating a lead tip core with a conductive material; selectively removing the conductive material to define the electrodes and conductive tracks leading therefrom; and then applying a layer of insulating material over the tracks to leave the electrodes exposed. Terminals are also left exposed on the tracks for connection to energy supply and/or data transmission lines. Such lines are preferably provided on or within a flexible lead body connected to the lead tip.
22 Citations
19 Claims
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1. A method of forming a multi-electrode lead, the method including the steps of:
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a. providing an elongated core having; (1) a length extending between a proximal end and a distal end, and (2) a nonconductive exterior surface; b. forming conductive tracks on the core'"'"'s exterior surface, wherein the step of forming the conductive tracks includes the steps of; i. forming a conductive layer about the core'"'"'s exterior surface, and ii. removing portions of the conductive layer to define the conductive tracks, and wherein the tracks; (1) extending along the core'"'"'s exterior surface from locations nearer the core'"'"'s proximal end, and (2) terminating in electrodes at locations nearer the core'"'"'s distal end; c. forming a nonconductive outer layer covering; (1) the tracks, except for the electrodes thereon, and (2) the core'"'"'s exterior surface adjacent the tracks. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A multi-electrode lead including:
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a. an elongated core having; (1) a length extending between a proximal end and a distal end, and (2) a nonconductive exterior surface; b. conductive tracks; (1) extending along the core'"'"'s exterior surface from locations nearer the core'"'"'s proximal end, (2) terminating in electrodes at locations nearer the core'"'"'s distal end, and (3) being defined by removing portions of a conductive layer formed about the core'"'"'s exterior surface, whereby the conductive tracks protrude radially from the core'"'"'s exterior surface; c. a nonconductive outer layer covering; (1) the tracks, except for the electrodes thereon, and (2) the core'"'"'s exterior surface adjacent the tracks. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of use for a multi-electrode lead, the multi-electrode lead having:
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(a) an elongated core having; (i) a length extending between a proximal end and a distal end, and (ii) a nonconductive exterior surface; (b) conductive tracks; (i) extending along the core'"'"'s exterior surface from locations nearer the core'"'"'s proximal end, (ii) terminating in electrodes at locations nearer the core'"'"'s distal end, and (iii) being defined by removing portions of a conductive layer formed about the core'"'"'s exterior surface, whereby the conductive tracks protrude radially from the core'"'"'s exterior surface; (c) a nonconductive outer layer covering; (i) the tracks, except for the electrodes thereon, and (ii) the core'"'"'s exterior surface adjacent the tracks, the method including the steps of; b. situating the electrodes within a patient'"'"'s brain, and c. delivering electrical stimulation to the patient'"'"'s brain via two or more of the electrodes. - View Dependent Claims (18, 19)
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Specification