Method for guiding flexible electrode and system for implanting flexible electrode

The present disclosure relates to a method for guiding a flexible electrode, comprising: engaging a guide device with a first engagement part of the flexible electrode, and enabling a first section of the flexible electrode adjacent to the first engagement part to be located near the guide device; spraying a liquid to the flexible electrode, such that at least the first section of the flexible electrode is attached to a first surface of the guide device; and using the guide device to guide the flexible electrode. The present disclosure further relates to a system for implanting a flexible electrode.

The abstract as published by the patent office, from US20250375216A1. It describes the invention; it is not a statement of what is protected.

• Surgical access

  Insertion tools and robots

• Interface and electrodes

  Electrodes and arrays

• Packaging

  Packaging and hermeticity

• Stimulation

  Stimulation

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B17/3403, A61B17/3468, A61B2017/3409, A61B5/293, A61B5/294). The claims define what a patent protects, and they are not read here.

Surgical access

A probe soft enough for the brain to tolerate is too soft to push in by hand, and each route into the head has its own risk. The problem behind it: placing many contacts exactly, without injuring tissue or vessels, in an operation short and repeatable enough to offer widely.

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.

Packaging

Body fluid destroys unprotected electronics. An implant meant to last has to stay sealed for years while passing every channel through its wall. The problem behind it: a seal that lasts as long as the patient needs it, at a size that leaves room for the channels.

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.

• ChinaCN115054334A16 Sep 2022CN115054334B1 Oct 2024 · grant
• International (PCT)a route to several countries, not a countryWO2023245706A128 Dec 2023
• United StatesUS20250375216A111 Dec 2025US12690885B228 Jul 2026 · grant

1. 20 Jun 2022First filingEarliest priority, at China. The family is counted in this year.
2. 29 Jun 2022ApplicationsFiled at International (PCT), United States.
3. 16 Sep 2022First publicationCN115054334A, China.
4. 1 Oct 2024Grant publishedCN115054334B, China.
5. 15 Apr 2026Office recordInternational (PCT), on WO2023245706A1: ep: pct application non-entry in european phase.
6. 28 Jul 2026Grant publishedUS12690885B2, United States.

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

StairMed · 46 families identified

• Bibliographic data, family members and office records: European Patent Office, Open Patent Services (the DOCDB and INPADOC databases), read 11 Oct 2026.
• The record itself, with its claims and description: US20250375216A1 in Espacenet
• Counted as a BCI patent family: classified A61B5/293 (invasive electrodes for brain recording); filed by 上海阶梯医疗科技有限公司, 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