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Next-Generation Prosthetic Hand: from Biomimetic to Biorealistic.

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Achieving seamless neural compatibility in prosthetic hands requires more than just appearance. Next-generation prosthetic hands need biologically realistic actuation, sensing, and reflex functions for better integration with amputees.

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Area of Science:

  • Neuroscience
  • Neural Engineering
  • Biomedical Engineering

Background:

  • Integrating prosthetic hands with seamless neural compatibility remains a significant challenge for neuroscientists and neural engineers.
  • Current prosthetic hands lack sensory awareness and compliant actuation, limiting their dexterity and integration with the amputee's sensorimotor system.
  • While sensory feedback restoration has advanced, replicating the compliant actuation of biological muscles in prosthetics has received limited attention.

Purpose of the Study:

  • To propose a novel perspective on achieving harmonious integration of prosthetic hands with amputees.
  • To highlight the critical need for neural compatibility with the sensorimotor system.
  • To advocate for a biorealistic approach in designing next-generation prosthetic hands.

Main Methods:

  • This perspective article reviews current challenges and proposes future directions in prosthetic hand design.
  • It emphasizes the importance of biological realism in actuation, sensing, and reflex functions.
  • The authors' ongoing research informs their viewpoint on achieving neural compatibility.

Main Results:

  • Mimicking anatomical structure alone does not guarantee improved neural connectivity.
  • Restoring sensory feedback is a crucial step, but compliant actuation is also essential.
  • A biorealistic approach incorporating actuation, sensing, and reflex functions is key to neural compatibility.

Conclusions:

  • Seamless integration of prosthetic hands requires achieving neural compatibility with the amputee's sensorimotor system.
  • Next-generation prosthetic hands must incorporate biologically realistic actuation, sensing, and reflex functions.
  • A comprehensive biorealistic design approach is necessary for the future of neuroprosthetic research.