A portable ankle-foot rehabilitation orthosis powered by electric motor

被引：0

作者：

Bai, Yang ^{[1
]}

Gao, Xueshan ^{[1
]}

Zhao, Jun ^{[2
]}

Jin, Fei ^{[3
]}

Dai, Fuquan ^{[1
]}

Lv, Yunqi ^{[1
]}

机构：

[1] School of Mechatronical Engineering, Beijing Institute of Technology, Beijing

[2] Department of Neurological Rehabilitation, China Rehabilitation Research Center, Beijing

[3] Rehabilitation Engineering Research Institute, China Rehabilitation Research Center, Beijing

来源：

Open Mechanical Engineering Journal | 2015年 / 9卷 / 01期

关键词：

Ankle rehabilitation; Ankle-foot; Dorsiflexion; Plantar flexion; Powered orthosis;

D O I：

10.2174/1874155X01509010982

中图分类号：

学科分类号：

摘要：

Powered ankle-foot orthosis can not only prevent foot-drop and assist patients’ walking but also improve the ankle joint movement for patients with dysfunction caused by the various injuries and nervous system diseases. Common ankle rehabilitation devices limit the ankle injury patients’ rehabilitation training within fixed places, so a portable powered ankle-foot orthosis is presented in this paper to enable the patients to continue their work normally with the treatment. The orthosis employs electric motor drive mode to provide ankle dorsiflexion and plantar flexion assistance during patient’s walking. First, the ankle-foot dynamics model is established and the gait is analyzed for the powered ankle-foot orthosis system. Then, a new mechanical structure including wearing parts, analogous ankle joint and transmission is described. For the small installation space between the instep and the knee, the compact transmission mechanism is paid more attention and the finite element method is adopted to optimize the key structure after the force analysis. In addition, the closed-loop control system is chosen for the orthosis position and speed control. At last, wearing and movement experiments on the prototype are carried out, which validates the stability and rationality of the structure design and the effectiveness of the motion control. It has great significance in promoting patient's rehabilitation to help them return to the society. © Cao et al.;.

引用

页码：982 / 991

页数：9

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