Introduction of Prosthesis and Orthosis Evaluation System that Utilizes Human Models

Akihiko Hanafusa, Mohd Syahmi Jamaludin, Le Van Tuan, Hayato Ikebata, Ryogo Suzuki, Taiki Kawamura, Shin ichiro Yamamoto, Yukio Agarie, Hiroshi Otsuka, Kengo Ohnishi

研究成果: Conference contribution

抄録

The fit of prostheses and orthoses is important, because, if the fit is inadequate, patients may feel uncomfortable. A poor fit can cause difficulty in gait, and, in the worst cases, it can cause inflammation. An evaluation system for checking the fit that utilizes human models has been developed. Human models of the residual limb and lower thigh with bone, muscle, and fat were composed. These models were used to evaluate the fit of the transfemoral socket and ankle foot orthosis (AFO) by dynamic finite-element analysis (FEA). For the transfemoral socket, insertion simulation was performed, and the validity of the fat part and pressure distribution of the residual limb were evaluated using magnetic resonance imaging and the force measured by sensors built in the socket. For the AFO, gait simulation of the stance phase was performed, and the transition of strain was compared with the measured result by the 3D-printed AFO, on which strain gauges were pasted. In addition, by performing topological optimization, the weight of the AFO can be reduced by maintaining the stiffness of the AFO. The results indicate the qualitative validity of dynamic FEA for analyzing the prosthesis socket and AFO using a human leg model.

本文言語English
ホスト出版物のタイトル11th Asian-Pacific Conference on Medical and Biological Engineering - Proceedings of the Online Conference, APCMBE 2020
編集者Yasuyuki Shiraishi, Ichiro Sakuma, Keiji Naruse, Akinori Ueno
出版社Springer Science and Business Media Deutschland GmbH
ページ93-101
ページ数9
ISBN(印刷版)9783030661687
DOI
出版ステータスPublished - 2021
イベント11th Asian-Pacific Conference on Medical and Biological Engineering, APCMBE 2020 - Okayama, Japan
継続期間: 2020 5 252020 5 27

出版物シリーズ

名前IFMBE Proceedings
82
ISSN(印刷版)1680-0737
ISSN(電子版)1433-9277

Conference

Conference11th Asian-Pacific Conference on Medical and Biological Engineering, APCMBE 2020
国/地域Japan
CityOkayama
Period20/5/2520/5/27

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 生体医工学

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