Introduction

Phantom Neuro has developed a groundbreaking under-skin implant that translates muscle signals into commands for prosthetic arms. The device sits discreetly beneath the forearm, offering a less invasive alternative to brain-based neural interfaces.

What Happened

Two patients in Melbourne, Australia, recently received the first implants from Phantom Neuro. Michael Easy, a 32-year-old carpenter, was the first recipient. The procedure, performed under mild sedation, took about an hour and created a pocket beneath the skin to house the device. A second patient underwent a faster 45-minute procedure without general anesthesia and left the hospital within three hours. The implant features two rows of electrodes embedded in flexible medical silicone and a small electronics disk that wirelessly processes muscle signals into robotic commands.

Early results show strong, consistent signal detection, with calibration lasting months rather than the daily recalibration typical of surface EMG. Easy reported the device felt smooth and fast, with minimal post-operative discomfort.

Why This Matters

Current prosthetic control methods rely on brain signals, peripheral nerves, or surface electrodes placed on the skin. Surface EMG is often finicky, affected by sweat, placement shifts, and motion artifacts, especially during physical activity. Phantom Neuro's under-skin approach aims to improve reliability and comfort.

Experts note the potential for daily use with greater reliability, though long-term performance and compatibility across diverse prosthetic systems remain under investigation. The company is working toward FDA approval within two to three years and exploring applications in lower-limb prostheses and defense-related human-machine interfaces.

Key Takeaways

  • The implant wraps under the skin and reads electromyography (EMG) signals from forearm muscles.
  • Procedures were completed in under an hour with mild sedation, and one patient returned home the same day.
  • Calibration between intended movement and prosthetic gesture can last months, unlike daily recalibration needed for surface electrodes.
  • The device wirelessly transmits signals and receives power via an external coil, similar to cochlear implant technology.
  • Phantom Neuro aims to seek FDA approval for upper-limb prosthetic control within the next two to three years.

Conclusion

Phantom Neuro's under-skin implant represents a promising step toward more natural, reliable prosthetic control with a less invasive surgical experience. As clinical trials progress and the technology moves toward regulatory clearance, it could significantly improve daily functioning for amputees seeking intuitive, long-term prosthetic integration.