A Novel Design of the Lower Limb Rehabilitation Robot

Abstract

Lower limb rehabilitation is becoming more and more necessary due to the severe aging trend in China. Although there are plenty of products aiming to address the demand, problems like cost and pertinence still exist. Hence, A new design of the Lower Limb Rehabilitation Robot (LLRR) was presented. The new and economical design considers the existing products, the body size of the Chinese and the application prospects of the LLRR. The LLRR mainly consists of the seat device, the lower limb exercise device and the structures which provide the whole device good mobility. The lightweight design and specific material selection reduce the LLRR’s weight while ensuring strength. At the same time, the backrest mechanism and the exercise mechanism realize the functions of backrest angle adjustment and the patient’s lower limb rehabilitation exercise. The diving elements of them chosen linear actuators and Dc motors. Through computational analysis and SOLIDWORKS Motion add-in’s kinematics simulation, the driving elements and mechanical movements of the LLRR were verified. This product provides a new and affordable method for people who need lower limb rehabilitation. It could not only benefit the patients themselves but also their family and the whole society to some extent.