Abstract
The research and application of assisted rehabilitation treatment with the help of flexible robots have gradually formed. Hand function rehabilitation robots have more practical value. It can simulate the movements of human hands and realize the rehabilitation training of human hands. However, due to the thin fingers and many degrees of freedom, it has been a difficult and important point of research. This paper presents a new wearable hand rehabilitation robot with 14 movable joints, which can better simulate human hand movements. A pneumatic muscle (PMS) and a passive slider in reverse by a pair of cylindrical pairs power each active joint. Pneumatic muscles are made of flexible materials with a multi-chamber stepped bending state. The compliance and muscle elasticity can provide a safe and flexible interaction. When inflation occurs, the length of the robot will have nonlinear change. With the characteristics of angular displacement tendency and nonlinear shrinkage provided by the passive slider, the rehabilitation robot system has the characteristics of nonlinear, time-varying and time-delay. The regeneration of nerve fiber endings of muscle control nerves can be promoted by increasing related muscle movements to improve and restore hand function. Using recursive dynamics simulation software, the dynamic simulation analysis of the auxiliary “stretching” and “bending” motion processes was performed to verify the rationality, auxiliary function and ergonomic characteristics of the exoskeleton to achieve the purpose of rehabilitation assistance.
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The study was supported by Key projects of national key research and development plan (2017YFF0207400): Research on key technologies and important standards of health services and remote health monitoring for the elderly and the disabled.
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Chen, L., Li, Y., Han, L., Yuan, L., Sun, Y., Tang, X. (2020). Comparative Analysis Soft Kinematics of Hand Rehabilitation Robot Powered by Pneumatic Muscles. In: Elderly Health Services and Remote Health Monitoring. SpringerBriefs in Applied Sciences and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-15-7154-1_7
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DOI: https://doi.org/10.1007/978-981-15-7154-1_7
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