Neural interface system
First Claim
1. A neural interface system, comprising:
- a) a substrate that is configured to be formed into a three-dimensional shape and comprises spaced apart first and second lateral edges extending from a proximal edge to a distal edge, wherein the first and second lateral edges comprise respective first and second wavy shapes curving alternatively in opposite lateral directions as they extend axially at least part way from the proximal edge to the distal edge of the substrate;
a plurality of conductive traces patterned on the substrate and adapted to transmit electrical signals; and
c) a plurality of electrode sites supported on the substrate and individually electrically coupled to one of the plurality of conductive traces; and
e) a carrier supporting the substrate in a three-dimensional shape, wherein the first wavy shape of the first lateral edge is interleaved with the second wavy shape of the second lateral edge to thereby form an interleaved boundary at the first and second lateral edges of the substrate supporting the electrical sites and the conductive traces on the carrier.
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Accused Products
Abstract
A neural interface system including an electrode array and a carrier that supports the electrode array, in which the electrode array includes a substrate rolled into a three-dimensional shape, a plurality of conductive traces patterned on the substrate and adapted to transmit electrical signals, and a plurality of elliptically shaped, externally facing electrode sites coupled to the plurality of conductive traces that electrically communicate with their surroundings. The plurality of electrodes are arranged in a triangular lattice circumferentially around and axially along the carrier, and the substrate includes an edge that extends axially along the carrier and is constrained between a first axial row portion of the plurality of electrode sites and a second axial row portion of the plurality of electrode sites adjacent to the first axial row portion.
129 Citations
36 Claims
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1. A neural interface system, comprising:
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a) a substrate that is configured to be formed into a three-dimensional shape and comprises spaced apart first and second lateral edges extending from a proximal edge to a distal edge, wherein the first and second lateral edges comprise respective first and second wavy shapes curving alternatively in opposite lateral directions as they extend axially at least part way from the proximal edge to the distal edge of the substrate; a plurality of conductive traces patterned on the substrate and adapted to transmit electrical signals; and c) a plurality of electrode sites supported on the substrate and individually electrically coupled to one of the plurality of conductive traces; and e) a carrier supporting the substrate in a three-dimensional shape, wherein the first wavy shape of the first lateral edge is interleaved with the second wavy shape of the second lateral edge to thereby form an interleaved boundary at the first and second lateral edges of the substrate supporting the electrical sites and the conductive traces on the carrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of making a neural interface system, comprising the steps of:
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a) providing a flexible substrate comprising spaced apart first and second lateral edges extending from a proximal edge to a distal edge, wherein the first and second lateral edges comprise respective first and second wavy shapes curving alternatively in opposite lateral directions as they extend axially at least part way from the proximal edge to the distal edge of the substrate; b) depositing a first polymer layer on the substrate; c) building a plurality of conductive traces on the first polymer layer; d) depositing a second polymer layer on the substrate; e) building a plurality of electrode sites that are individually electrically coupled to one of the plurality of conductive traces; and f) forming a carrier supporting the substrate including the electrode array into a three-dimensional electrode array such that the first wavy shape of the first lateral edge is interleaved with the second wavy shape of the second lateral edge to thereby form an interleaved boundary at the first and second lateral edges. - View Dependent Claims (20, 21, 22, 23)
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24. A neural interface system, which comprises:
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a) an electrode array comprising; i) a substrate provide in a three-dimensional shape; ii) a plurality of conductive traces patterned on the substrate; and iii) a plurality of elliptically shaped electrode sites coupled to the plurality of conductive traces, wherein the electrode sites include at least one of a recording electrode site and a stimulation electrode site that is configured to electrically communicate with its surroundings; and b) a carrier that supports the electrode array; c) wherein the plurality of electrode sites are arranged in a triangular lattice circumferentially around and axially along the carrier; and d) wherein the substrate includes a longitudinal edge that extends axially along the carrier and is constrained between a first axial row portion of the plurality of electrode sites and a second axial row portion of the plurality of electrode sites adjacent to the first axial row portion; e) wherein the longitudinal edge of the substrate includes a set of undulatory extensions with a ratio of a major axis of the plurality of electrode sites to a minor axis of the plurality of the electrode sites being; i) proportional to the amplitude of the set of undulations; ii) proportional to an outer diameter of the three-dimensional shape of the substrate; and iii) inversely proportional to the edge-to-edge spacing. - View Dependent Claims (25, 26)
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27. A method of making a neural interface system, comprising the steps of:
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a) providing a flexible substrate comprises spaced apart first and second lateral edges extending from a proximal edge to a distal edge; b) removing selected portions of the substrate to form first and second lateral edges having respective first and second wavy shapes curving alternatively in opposite lateral directions as they extend axially at least part way from the proximal edge to the distal edge of the substrate; c) depositing a first polymer layer on the substrate; d) depositing a metal layer on the first polymer layer and patterning the metal layer to form a plurality of conductive traces; e) building a plurality of electrode sites coupled to the plurality of conductive traces; f) depositing a second polymer layer on the substrate; and g) rolling the substrate to interleave the first wavy shape of the first lateral edge with the second wavy shape of the second lateral edge to thereby form an interleaved boundary at the first and second lateral edges of the substrate supporting the electrical sites and the conductive traces on the carrier. - View Dependent Claims (28, 29)
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30. An electrode array, which comprises:
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a) a substrate that is configured to be formed into a three-dimensional shape and comprises spaced apart first and second lateral edges extending from a proximal edge to a distal edge, wherein the first and second lateral edges comprise respective first and second wavy shapes curving alternatively in opposite lateral directions as they extend axially at least part way from the proximal edge to the distal edge of the substrate; b) a plurality of conductive traces patterned on the substrate; and c) a plurality of electrode sites supported on the substrate and individually electrically coupled to one of the plurality of conductive traces, d) wherein the first wavy shape of the first lateral edge is configured to interleave with the second wavy shape of the second lateral edge. - View Dependent Claims (31, 32, 33)
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34. An electrode array, which comprises:
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a) a substrate that is configured to be formed into a three-dimensional shape and comprises spaced apart first and second lateral edges extending from a proximal edge to a distal edge, wherein the first and second lateral edges comprise respective first and second patterned shapes selected from the group consisting of wavy extensions, rectangular extensions and square extensions as the lateral edges extend axially at least part way from the proximal edge to the distal edge of the substrate; b) a plurality of conductive traces patterned on the substrate and adapted to transmit electrical signals; and c) a plurality of electrode sites supported on the substrate and individually electrically coupled to one of the plurality of conductive traces, d) wherein the first lateral edge is configured to interleave with the second lateral edge to thereby form an interleaved boundary at the first and second lateral edges. - View Dependent Claims (35, 36)
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Specification