Design and Performance Evaluation of a Novel Wearable Parallel Mechanism for Ankle Rehabilitation

Frontiers in Neurorobotics
Shiping ZuoYuan Kong

Abstract

Repetitive and intensive physiotherapy is indispensable to patients with ankle disabilities. Increasingly robot-assisted technology has been employed in the treatment to reduce the burden of the therapists and the related costs of the patients. This paper proposes a configuration of a wearable parallel mechanism to supplement the equipment selection for ankle rehabilitation. The kinematic analysis, i.e., the inverse position solution and Jacobian matrices, is elaborated. Several performance indices, including the reachable workspace index, motion isotropy index, force transfer index, and maximum torque index, are developed based on the derived kinematic solution. Moreover, according to the proposed kinematic configuration and wearable design concept, the mechanical structure that contains a basic machine-drive system and a multi-model position/force data collection system is designed in detail. Finally, the results of the performance evaluation indicate that the wearable parallel robot possesses sufficient motion isotropy, high force transfer performance, and large maximum torque performance within a large workspace that can cover all possible range of motion of human ankle complex, and is suitable for ankle rehabilitation.

References

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Citations

Mar 22, 2021·Journal of Neuroengineering and Rehabilitation·Mingjie DongYuan Kong

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Methods Mentioned

BETA
PMAs

Software Mentioned

pediAnklebot

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