Abstract

According to a report released by the World Health Organization in 2011, the number of disabled people worldwide accounts for about 15% of humanity, many of whom are lower limb amputees who lost the ability to walk and climb stairs. However, for various reasons, the proportion of amputees fitted with prostheses or orthotic devices is deficient, and society has a significant demand for prostheses. Since the end of the 20th century, prosthetic intelligence has gradually become the primary goal of prosthesis research. Intelligent prostheses can better restore the function of the inherent limb. There are various solutions for both the mechanical structure and control systems of prostheses, such as stepper motor drives, magneto-rheological liquid intelligent control drives, hydraulic and pneumatic dual-cylinder type drives, and pneumatic device drives. This paper will analyze these solutions and discuss how better integration of different solutions can bring new ideas to the research of intelligent prostheses.

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