Device for assessment of brain signals

A method for assessment of brain signals of a patient includes determining, by one or more processors, a cluster of neural data occurring at a brain of the patient and outputting, by the one or more processors, a request for a user to provide patient state information for the cluster of the neural data in response to determining that the cluster of the neural data is occurring at the brain of the patient. The method further includes associating, by the one or more processors, the patient state information with the cluster of the neural data to generate patient assessment information and outputting, by the one or more processors, the patient assessment information.

The abstract as published by the patent office, from US2022266023A1. It describes the invention; it is not a statement of what is protected.

• Interface and electrodes

  Electrodes and arrays

• Telemetry

  Wireless telemetry

• Signal processing

  Signal processing

• Stimulation

  Stimulation · Closed loop

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B5/293, A61B5/369, A61B5/372, A61B5/4064, A61B5/4094). The claims define what a patent protects, and they are not read here.

Interface and electrodes

Everything downstream works with what the contacts pick up. Their number, size and distance from the neurons set the ceiling on the signal. The problem behind it: more contacts, closer to neurons, that still record after years in tissue that reacts to them.

Telemetry

Thousands of channels produce more data than a low-power radio can carry raw, so what is sent, and how, decides what the system can use. The problem behind it: high data rates at low power through tissue, reliably and securely.

Signal processing

A decoder is only as good as the features it is given, and recordings drift and pick up noise from movement, muscle and stimulation. The problem behind it: stable features from signals that change from day to day, computed fast enough to act on.

Why the layer matters to the field, not a judgement of this filing. A patent family shows that protection was sought. It does not show that the technology was built, is used in a product, or works in people. The whole stack

One invention, published 5 times in 3 offices. Each publication opens in Espacenet.

• United StatesUS2022266023A125 Aug 2022US12502541B223 Dec 2025 · grant
• ChinaCN114947880A30 Aug 2022
• European Patent Officea route to several countries, not a countryEP4049590A131 Aug 2022EP4049590B122 Jul 2026 · grant

1. 24 Feb 2021First filingEarliest priority, at United States. The family is counted in this year.
2. 18 Jan 2022ApplicationFiled at United States.
3. 18 Jan 2022Owner recordedUnited States, on US2022266023A1: assignment; owner named: MEDTRONIC, INC., MINNESOTA.
4. 23 Feb 2022ApplicationsFiled at China, European Patent Office.
5. 25 Aug 2022First publicationUS2022266023A1, United States.
6. 23 Dec 2025Grant publishedUS12502541B2, United States.
7. 22 Jul 2026Grant publishedEP4049590B1, European Patent Office.

Dates as the offices published them. Office records are in the offices' own words and are a selection: refusals, lapses and withdrawals, and records that name an owner. Each concerns one member of the family, not the family as a whole, and another member in the same office may stand. Whether a patent is in force today is not assessed.

Organisation

Medtronic · 40 families identified

• Bibliographic data, family members and office records: European Patent Office, Open Patent Services (the DOCDB and INPADOC databases), read 7 Oct 2026.
• The record itself, with its claims and description: US2022266023A1 in Espacenet
• Counted as a BCI patent family: uses the field's wording; classified A61B5/293 (invasive electrodes for brain recording); filed by Medtronic, Inc., an organisation already in the graph; describes neural hardware or methods without naming the field; cites a family already accepted. How families are found and judged