Neural prosthetic micro system
OwnerMohammad M. Mojarradi, Erik J. Brandon +5inventors
InventorsMohammad M. Mojarradi, Erik J. Brandon, Jay F. Whitacre, Linda Y. Del Castillo, Richard A. Andersen, Travis W. Johnson, William C. West
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Abstract
A neural prosthetic micro system includes an electrode array coupled to an integrated circuit (IC) which may include signal conditioning and processing circuitry. The IC may include a high pass filter that passes signals representative of local field potential (LFP) activity in a subject's brain.
Claims55
An apparatus adapted to be implanted in a subject, the apparatus comprising:
- a chip including a plurality of amplifiers arranged in an array;
- and
- a plurality of electrodes, each electrode coupled to a corresponding one of the amplifiers.
An apparatus adapted to be implanted in a subject, the apparatus comprising:
- a plurality of electrodes;
- a substrate;
- a plate including a plurality of holes, wherein a plurality of said electrodes extend through corresponding holes in the plate;
- and
- an actuator between the substrate and the plate, the actuator operative to expand in response to receiving a signal, thereby decreasing an effective length of the electrodes extending through the holes.
An apparatus adapted to be implanted in a subject, the apparatus comprising:
- a substrate having a first side and a second side, the second side being opposite the first side;
- a plurality of electrodes positioned adjacent to the first side of the substrate;
- a plate positioned adjacent to the second side of the substrate;
- and
- an actuator between the substrate and the plate, the actuator operative to expand in response to receiving a signal.
A method for fabricating an implant, the method comprising:
- coupling a contact bump to each of a plurality of amplifiers in an integrated circuit (IC) on a substrate;
- bonding an alignment plate to the substrate, the alignment plate including a plurality of holes corresponding in position to the plurality of contact bumps;
- inserting a plurality of wire probes into corresponding holes in the alignment plate;
- and
- bonding each wire probe to a corresponding contact bump.
A method comprising:
- implanting a device including a plurality of electrodes into a subject during an implantation operation;
- and
- changing a penetration depth of electrodes implanted in the subject after the implantation operation.
A micro system adapted to be implanted in a subject, the micro system comprising:
- a chip including a plurality of amplifiers arranged in an array;
- a plurality of electrodes, each electrode coupled to a corresponding one of the amplifiers;
- and
- a high pass filter operative to pass signals representative of local field potential (LFP) activity.
A micro system adapted to be implanted subcutaneously on the skull of a subject, the micro system comprising:
- a chip including a plurality of amplifiers arranged in an array;
- a connector operative to couple each of a plurality of electrodes implanted in the subject's brain to a corresponding one of the amplifiers;
- and
- a high pass filter operative to pass signals representative of local field potential (LFP) activity.
Dependencies are inferred from the claim text.