# US 12,001,942 B2 · Biological neuron to electronic computer interface

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- Number: US 12,001,942 B2
- Document ID: US12001942B2
- Status: Granted
- Kind: B2
- Application number: 15/851,949
- Filed: 2017-12-22
- Published: 2019-06-27
- Granted: 2024-06-04
- Earliest claimed: 2017-12-22
- Assignees: International Business Machines Corporation
- Applicants: International Business Machines Corporation
- Inventors: Christopher F. Codella; James V. Codella; Noel C. Codella; Vince S. Siu
- Web page: https://patentgrep.com/patent/US12001942B2

## CPC

- G06N 3/061: {using biological neurons, e.g. biological neurons connected to an integrated circuit}
- G06F 13/4068: {Electrical coupling}
- G06N 3/063: using electronic means
- G06N 3/08: Learning methods
- G06N 3/09: Supervised learning
- G06N 3/092: Reinforcement learning
- G06N 3/096: Transfer learning
- G06N 20/00: Machine learning
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

An apparatus includes a substrate, an array of channels disposed in the substrate, wherein first ends of the channels are exposed to an outside the apparatus, a material disposed in the channel that promotes growth of neural tissue, a plurality of electrodes disposed at second ends of the channels, wherein each channel is aligned with a respective one of the electrodes, and a chip electrically connected to the electrodes.

## Claims

### Claim 1

An apparatus comprising:
a substrate;
an array of channels patterned as grooves in the substrate, wherein first ends of the channels are first openings on a first surface of the substrate and each channel of the array comprises a longitudinal opening on an interface surface of the substrate;
a material disposed in each of the channels that promotes growth of neural tissue into the first openings of the channels;
a plurality of electrodes in the substrate at second ends of the channels, wherein each channel of the array is aligned with a respective one of the electrodes; and
a chip electrically connected to the electrodes.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the chip further comprises at least one of a wired and a wireless communication device communicating to an external computer system.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the apparatus is physically connected a prosthetic device, and the apparatus is configured to conduct signals between axons in the channels and the prosthetic device.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the chip comprises:
a communication component; and
a computational component.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the chip comprises a plurality of induction generators connected to the electrodes and configured to apply an electric current to axons in the channels.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein the chip comprises a plurality of induction sensors connected to the electrodes configured to sense axon potentials.

### Claim 7 (depends on 1)

The apparatus of claim 1, further comprising a machine learning system configured to create a model matching axon signals to a function of computer system.

### Claim 8 (depends on 1)

The apparatus of claim 1, further comprising a machine learning system configured to create a model matching axon signals to a functional arrangement of a prosthetic device.

### Claim 9 (depends on 1)

The apparatus of claim 1, further comprising an extended-release hydrogel on the first openings on the first surface of the substrate, wherein the longitudinal opening on an interface surface of the substrate is enclosed by a second substrate bonded to the substrate, wherein the second substrate comprises a second array of channels disposed therein.

### Claim 10 (depends on 1)

The apparatus of claim 1, further comprising a plurality of micro-channel structures on sidewalls in each of the channels.

### Claim 11 (depends on 1)

The apparatus of claim 1, wherein different ones of the channels have different diameters configured to differentiate types of the neural tissue.

### Claim 12

An apparatus comprising:
a substrate;
an array of channels patterned as grooves in the substrate, wherein first ends of the channels are first openings on a first surface of the substrate and each channel of the array comprises a longitudinal opening on an interface surface of the substrate;
a material disposed in each of the channels that promotes growth of neural tissue into the first openings of the channels;
a plurality of electrodes in the substrate; and
a chip electrically connected to the electrodes,
where the plurality of electrodes comprise:
a plurality of electrical induction sensing conductors in the substrate between the channels; and
a plurality of electrical induction generating conductors in the substrate between the channels,
wherein each of the electrical induction sensing conductors is disposed opposite to a respective one of the electrical induction generating conductors across a respective one of the channels.

### Claim 13 (depends on 12)

The apparatus of claim 12, further comprising an extended-release hydrogel on the first openings on the first surface of the substrate, wherein the longitudinal opening on an interface surface of the substrate is enclosed by a second substrate bonded to the substrate, wherein the second substrate comprises a second array of channels disposed therein.

### Claim 14

An apparatus comprising:
a substrate comprising a plurality of stacked chips;
an array of channels patterned as grooves in the substrate, wherein first ends of the channels are openings on a first surface of the substrate, wherein each of the channels comprises a longitudinal opening along a length of the respective channel on a surface of a respective one of the stacked chips;
a material disposed in each of the channels that promotes growth of neural tissue into the openings of the channels;
a plurality of electrodes in the substrate at second ends of the channels, wherein each channel is aligned with a respective one of the electrodes; and
an integrated chip electrically connected to the electrodes,
wherein a first stacked chip of the plurality of stack chips encloses the longitudinal openings of the channels of a second stack chip of the plurality of stack chips and a third stacked chip of the plurality of chips encloses the longitudinal openings of the channels of the second stack chip of the plurality of stack chips.

### Claim 15 (depends on 14)

The apparatus of claim 14, wherein the integrated chip is shared by the plurality of stacked chips.
