BCI Atlas

CorTec (Germany) is developing the Brain Interchange System, a platform positioned for implantable, wireless, closed-loop neurotechnology research and (eventually) therapies.

What they’re building

CorTec describes Brain Interchange as a system for pre-clinical and clinical research to develop therapies for neurological diseases.

• CorTec site (Brain Interchange mention): https://cortec-neuro.com/

First-in-human milestone (reported)

BioWorld reported that CorTec implanted its Brain Interchange BCI system into a stroke patient in late July 2025.

• BioWorld (Jul 30, 2025): https://www.bioworld.com/articles/722553-cortec-performs-first-in-human-brain-interchange-implant?v=preview

Why it matters

A lot of BCI discourse is dominated by “assistive” use cases (cursor control, typing). CorTec sits closer to the therapeutic / closed-loop lane, where the key engineering questions are:

• stable long-term recording
• safe stimulation
• telemetry / power
• clinical reliability and workflow

What to watch

1. Indications and trial design What is the first target (stroke rehab, epilepsy, movement disorders, etc.) and what are the endpoints?

2. Closed-loop performance How are biomarkers defined, detected, and used to control stimulation in real time?

3. Device practicality Implant size, longevity, recharge strategy, reliability, and surgical burden.