Development a Myoelectric Prosthetic Hand for Partial Hand Amputees to Use Successfully Remaining Finger -Proposal of the Design Method for Mechanical System and Control System and Prototype -

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  • MURAI Yuta
    Department of Mechanical Engineering and Intelligent Systems, The University of Electro-communications
  • YABUKI Yoshiko
    Department of Mechanical Engineering and Intelligent Systems, The University of Electro-communications
  • ISHIHARA Masahiro
    Brace on R Nagoya Corporation
  • TAKAGI Takehiko
    Department of Medicine, Tokai University
  • TAKAYAMA Shinichiro
    National Center for Child Health and Development
  • TOGO Shunta
    Department of Mechanical Engineering and Intelligent Systems, The University of Electro-communications Faculty of Engineering, Yokohama National University
  • KATO Ryu
    Faculty of Engineering, Yokohama National University Brain Science Inspired Life Support Research Center, The University of Electro-communications
  • JIANG Yinlai
    Department of Mechanical Engineering and Intelligent Systems, The University of Electro-communications Brain Science Inspired Life Support Research Center, The University of Electro-communications
  • YOKOI Hiroshi
    Department of Mechanical Engineering and Intelligent Systems, The University of Electro-communications Brain Science Inspired Life Support Research Center, The University of Electro-communications

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Other Title
  • 残存指を利用できる手部筋電義手システムの開発－設計手法の提案と試作
  • ザンソン ユビ オ リヨウ デキル シュブキンデンギシュ システム ノ カイハツ : セッケイ シュホウ ノ テイアン ト シサク

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Abstract

In this paper, we proposed the design method of myoelectric prosthetic hand for partial hand amputees to substitute function of the movement of the disarticulating finger and to utilize a function of the movement of remaining fingers. Problems for designing myoelectric prosthetic hand for partial hand amputees exists in mechanical system design and control system design. In the problem of mechanical system design, a socket is designed so as to fit a shape of amputation stump, and a grasping mechanics is contained within an appearance of healthy hand shape by using measured 3D data of healthy hand based on the framework of digital engineering. The control system is designed to extract the only electromyogram related to moving the disarticulating finger from measured all electromyogram by using the neural network, and electromyogram has been successfully applied to control a motorized hand. Next, we prototyped myoelectric prosthetic hand with the proposed design method. Finally, availability of grasping and manipulation of the prototype was evaluated and contained by using the Pick-and-place experiment.

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