NEURAL INTERFACE SYSTEM
First Claim
1. A neural interface system, comprising:
- an electrode array including;
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 electrode sites, coupled to the plurality of conductive traces, that electrically communicate with their surroundings, wherein the plurality of electrode sites includes at least one of a recording electrode site and a stimulation electrode site; and
a carrier that supports the electrode array;
wherein the plurality of electrode sites are arranged in a triangular lattice circumferentially around and axially along the carrier; and
wherein 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.
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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.
144 Citations
20 Claims
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1. A neural interface system, comprising:
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an electrode array including; 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 electrode sites, coupled to the plurality of conductive traces, that electrically communicate with their surroundings, wherein the plurality of electrode sites includes at least one of a recording electrode site and a stimulation electrode site; and a carrier that supports the electrode array; wherein the plurality of electrode sites are arranged in a triangular lattice circumferentially around and axially along the carrier; and
wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of making a neural interface system, comprising the steps of
providing a flexible substrate having an edge shaped with a set of extensions, depositing a first polymer layer on the substrate; -
building on the first polymer layer a plurality of conductive traces that conduct electrical signals on the substrate; depositing a second polymer layer on the substrate; building a plurality of electrode sites, coupled to the plurality of conductive traces, in a triangular lattice; and rolling the substrate towards the edge to form a three-dimensional electrode array such that the plurality of electrode sites face externally and the set of extensions interleave with a portion of the plurality of electrode sites, thereby allowing the triangular lattice to be uninterrupted. - View Dependent Claims (17, 18, 19, 20)
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Specification