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The loss of a hand disrupts critical neural pathways, and severely impacts a person’s autonomy in conducting daily activities. Recent advances in bionic solutions aim to restore motor functions using electrical signals from residual nerves and muscles. Differently, here we report the first clinical implementation of a myokinetic interface, which utilizes muscle deformation sensed through passive magnetic implants. Specifically, one participant with a transradial amputation had six permanent magnets implanted in three muscles of the residual limb. A fully self-contained myokinetic prosthetic hand, housing all hardware components within the socket, was developed. The participant controlled a dexterous robotic hand in real-time using magnet localization to detect muscle deformation. In six weeks, the participant completed functional tests with scores comparable to standard of care solutions. While this initial study highlighted some conceptual and technical challenges, it demonstrates a viable new approach for intuitive human-robot interfacing.

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The Myokinetic Interface for Prosthetic Control: Preliminary Results from a Pilot Study with an Amputee

  • 会议论文

  • 发表日期：

    2025年

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  • Marta Gherardini,
  • Valerio Ianniciello,
  • Federico Masiero,
  • Flavia Paggetti,
  • Daniele D’Accolti,
  • Eliana La Frazia,
  • Olimpia Mani,
  • Stefania Dalise,
  • Katarina Dejanovic,
  • Noemi Fragapane,
  • Luca Maggiani,
  • Edoardo Ipponi,
  • Marco Controzzi,
  • Manuela Nicastro,
  • Carmelo Chisari,
  • Lorenzo Andreani,
  • Christian Cipriani

摘要

The loss of a hand disrupts critical neural pathways, and severely impacts a person’s autonomy in conducting daily activities. Recent advances in bionic solutions aim to restore motor functions using electrical signals from residual nerves and muscles. Differently, here we report the first clinical implementation of a myokinetic interface, which utilizes muscle deformation sensed through passive magnetic implants. Specifically, one participant with a transradial amputation had six permanent magnets implanted in three muscles of the residual limb. A fully self-contained myokinetic prosthetic hand, housing all hardware components within the socket, was developed. The participant controlled a dexterous robotic hand in real-time using magnet localization to detect muscle deformation. In six weeks, the participant completed functional tests with scores comparable to standard of care solutions. While this initial study highlighted some conceptual and technical challenges, it demonstrates a viable new approach for intuitive human-robot interfacing.