Development of a Design Support System for Hip Disarticulation Prostheses Using Neuro-Musculo-Skeletal Human Model

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Other Title
  • 神経・筋骨格系を有する人体モデルを用いた股義足開発支援シミュレータの開発

Description

<p>In this study an attempt was made to apply a simulator of the human ambulatory stride wearing a hip disarticulation prosthesis (HDP) as a design support system. The simulator was based on a neuro-musculo-skeletal model that was developed in our previous study. First, two design proposals of the HDP were submitted. Each mechanical model of the proposals was constructed and introduced to the simulator. It was confirmed that the human models wearing the proposed HDPs were able to walk on the simulation after the normal turnings of mechanical properties and a high number of iteration computations were conducted to optimize the process of the neural parameters. Next, using results of the simulation as a reference, a prototype of a hip joint of an HDP was designed and manufactured, which will be able to assist flexion-extension motion around the hip joint. An analysis of walking motion using the prototype was performed. Then the maximum knee flexion angle of the HDP was measured at twice the height as that of walking using the normal HDP. This contributed to making the gait more natural in appearance. In addition, the walk patterns using the prototype HDP agree with the results of the simulator, thus validating the simulator. Finally, the effectiveness of the support system design was examined and further problems to be solved were identified.</p>

Journal

  • Biomechanisms

    Biomechanisms 18 (0), 113-125, 2006

    Society of Biomechanisms

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