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The BCI Briefing

Patent familyBCI, high confidence

Pre-assembly structure, pre-assembly method and implantation method of microwire electrode

Filed by Chinese Institute for Brain Research and NeuCyber NeuroTech, first in 2025.

Granted · CNView in Espacenet
Earliest priority
15 Aug 2025 · China
Status
A grant was published in China, first on 14 Nov 2025
Published in
China
Registered as
INST FOR BRAIN SCIENCE AND BRAIN · 北京脑科学与类脑研究所 · BEIJING XINZHIDA NERVE TECH CO LTD · 北京芯智达神经技术有限公司
Inventors
郜磊 · 吕伟鹏 · 张旭鑫
Family
DOCDB 96954299 · 2 publications

What it concerns

The invention discloses a pre-assembly structure, a pre-assembly method and an implantation method of a microwire electrode. The pre-assembly structure comprises a microwire electrode and a plurality of microwire electrodes, wherein the microwire electrode is provided with a substrate and a plurality of microwire structures attached to the substrate; microfilament structures are arranged on the organic thin film; and the rigid implanting tool is fixedly connected with the microwire structure, and the rigid implanting tool is used for implanting the electrode recording site on the microwire structure into the target object. By means of the technical scheme, the problems that in the prior art, a microwire electrode is prone to adhering to a substrate in the drying process, so that separation is difficult, and after being dried, the microwire electrode is unstable in air and prone to fluttering and winding, so that operation difficulties are brought to the follow-up implantation step can be effectively solved.

The abstract as published by the patent office, from CN120616543A. It describes the invention; it is not a statement of what is protected.

Protection themes

  • Interface and electrodes

    Electrodes and arrays

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B5/25, A61B5/268, A61B5/293, A61B5/294). The claims define what a patent protects, and they are not read here.

Why it matters

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.

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

The family

One invention, published 2 times in 1 office. Each publication opens in Espacenet.

Timeline

  1. 15 Aug 2025First filingEarliest priority, at China. The family is counted in this year.
  2. 12 Sep 2025First publicationCN120616543A, China.
  3. 14 Nov 2025Grant publishedCN120616543B, China.

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.

Sources

  • 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: CN120616543A in Espacenet
  • Counted as a BCI patent family: classified A61B5/293 (invasive electrodes for brain recording); filed by 北京芯智达神经技术有限公司, an organisation already in the graph; a hardware layer of the stack, filed by a company that builds interfaces. How families are found and judged