Electrode array and method of fabrication
First Claim
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1. An electrode array comprising:
- a tube having at least one wall defining a channel;
a substrate comprised of non-conductive material and supported at least partially by the tube;
a plurality of electrodes comprised of a conductive material and supported by the substrate; and
a plurality of feed lines comprised of a conductive material and disposed primarily within the substrate wherein each feed line is electrically connected to at least one of the plurality of electrodes;
wherein the at least one wall of the tube is continuous to allow liquids to pass through the tube channel defines a plurality of slots into the hollow channel for regulating stiffness and curl of the tube.
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Abstract
An electrode array, having application as a cochlear implant, includes a tube formed of Parylene defining a hollow channel. A substrate formed primarily of Parylene is supported by the tube. In turn, a plurality of metallic electrodes and feed lines are supported by the substrate. Numerous voids are defined by the tube which opens into the hollow channel. The size and spacing of the voids regulate stiffness and curl of the tube to provide excellent fit within the cochlea.
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Citations
15 Claims
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1. An electrode array comprising:
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a tube having at least one wall defining a channel; a substrate comprised of non-conductive material and supported at least partially by the tube; a plurality of electrodes comprised of a conductive material and supported by the substrate; and a plurality of feed lines comprised of a conductive material and disposed primarily within the substrate wherein each feed line is electrically connected to at least one of the plurality of electrodes; wherein the at least one wall of the tube is continuous to allow liquids to pass through the tube channel defines a plurality of slots into the hollow channel for regulating stiffness and curl of the tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification