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Proposal of Powered Foot Prosthesis Emulating Motion of Healthy Foot (PEHF)

Authors:
Yoshitoshi Murata
Haruki Baba
Yukihide Nishimura

Keywords: foot prosthesis, power driven, leg amputee, walking gait, Quality of Life, QOL

Abstract:
Several million people around the world live with limb loss. Foot prosthesis is useful to improve their quality of life, and powered foot prosthesis enables them to walk naturally. However, most are too expensive for most amputees to afford. We propose a novel powered foot prosthesis that emulates the motion of a healthy foot with a half cycle delay. When a healthy person is walking, the motions of both feet are basically the same, with a half cycle difference. On the basis of this principle, the angle velocity of the foot part of the proposed prosthesis changes in the same way as the angle velocity of the healthy foot, with a half cycle delay. After introducing the measured motion data for both feet, a prototype of the proposed foot prosthesis is presented. Since this foot prosthesis adopts an industrial cylinder motor to push and pull the foot part of prosthesis, its cost would be dramatically lower than that of existing foot prosthetics.

Pages: 14 to 19

Copyright: Copyright (c) IARIA, 2020

Publication date: March 22, 2020

Published in: conference

ISSN: 2308-4359

ISBN: 978-1-61208-763-4

Location: Valencia, Spain

Dates: from November 21, 2020 to November 25, 2020