Magnetic beads could give amputees Mind-Controlled bionic legs

NCT ID NCT06391697

Ongoing Disease control Sponsor: Brigham and Women's Hospital Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jul 10, 2026 · Updated 3 times

Summary

This study tests a new system that uses magnetic beads implanted in leg muscles to help people with below-knee amputations control a bionic ankle-foot prosthesis. The beads track muscle movement in real time, sending signals to a robotic leg. Up to 7 participants will receive the implants and be followed for 24 months to see if the system works safely and improves prosthetic control.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: e-OPRA Implant System and Magnetic Bead Tracking System (implantable devices)
What this could lead to: If successful, this could lead to more natural, brain-controlled bionic legs for amputees, improving mobility and quality of life.
What could go wrong: This is a very early feasibility study with only 7 participants, so results may not apply to everyone. The devices require surgery and may have risks like infection or implant failure.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

AMPUTATION

Contacts and locations

Locations

Brigham and Women's Hospital

Boston, Massachusetts, 02115, United States
MIT Media Lab

Cambridge, Massachusetts, 02139, United States

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