Microelectrode array for chronic deep-brain microstimulation for recording
First Claim
1. A multielectrode probe for electrical stimulation of deep-brain nuclei for correction of movement disorders, or recording of neural responses, comprising:
- an enlarged upper end comprising a silicon-substrate body and a plurality of conductive portions for bonding to lead wires,an elongated, slender silicon-substrate shank extending from the enlarged upper end,a plurality of spaced-apart electrodes on the shank,a plurality of conductive traces, each conductive trace electrically connecting one of the plurality of conductive portions to one of the plurality of electrodes and extending from the enlarged upper end along the shank, anda slender elongated strengthening shaft adhered to the elongated, slender silicon-substrate shank along a length of the slender silicon-substrate shank.
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Accused Products
Abstract
The invention relates to a multielectrode probe having a silicon substrate which supports multiple conductive electrodes for deep-brain electrical stimulation or recording of neural responses. The substrate has an upper end with multiple conductive portions for bonding to lead wires, and an elongated shank extends from the upper end. The shank supports multiple spaced-apart electrodes, typically ten in number, and conductive traces electrically connect the electrodes and conductive traces. Multiple probes are combined, and supported as an array by a cylindrical alignment cylinder.
58 Citations
16 Claims
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1. A multielectrode probe for electrical stimulation of deep-brain nuclei for correction of movement disorders, or recording of neural responses, comprising:
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an enlarged upper end comprising a silicon-substrate body and a plurality of conductive portions for bonding to lead wires, an elongated, slender silicon-substrate shank extending from the enlarged upper end, a plurality of spaced-apart electrodes on the shank, a plurality of conductive traces, each conductive trace electrically connecting one of the plurality of conductive portions to one of the plurality of electrodes and extending from the enlarged upper end along the shank, and a slender elongated strengthening shaft adhered to the elongated, slender silicon-substrate shank along a length of the slender silicon-substrate shank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An array of multielectrode probes for deep-brain implantation, the array comprising:
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a cylindrical alignment cylinder; and an array of parallel multielectrode probes having ends supported within the cylindrical alignment cylinder, each of the probes having multiple electrodes for electrical stimulation of deep-brain nuclei, and recording of neural responses, each of the probes comprising an elongated, slender silicon-substrate shank having an enlarged upper end with multiple conductive portions thereon for bonding to lead wires and an elongated iridium shaft adhered to the elongated, slender silicon-substrate shank along a length of the slender silicon-substrate shank. - View Dependent Claims (13)
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14. A multielectrode probe for electrical stimulation of deep-brain nuclei for correction of movement disorders, or recording of neural responses, comprising:
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an enlarged upper end comprising a silicon-substrate body and a plurality of conductive portions for bonding to lead wires, an elongated, slender silicon-substrate shank extending from the enlarged upper end, the shank defining a longitudinal part-circular trough, a plurality of spaced-apart electrodes on the shank, a plurality of conductive traces, each conductive trace electrically connecting a respective conductive portion to a respective electrode and extending from the enlarged upper end along the shank, and an elongated iridium strengthening shaft adhered to the longitudinal trough of the elongated, slender silicon-substrate shank, the shaft being adhered to the shank using a silicone-elastomer adhesive. - View Dependent Claims (15, 16)
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Specification