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2014, Number 1

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Rev Mex Ing Biomed 2014; 35 (1)

Development of an Exoskeleton for Ankle and Knee Rehabilitation

López R, Torres J, Salazar S, Lózano R

Language: Spanish
References: 31
Page: 13-28
PDF size: 698.62 Kb.


ABSTRACT

Exoskeletons are electro-mechanical systems coupled to the body limbs focused mainly in increasing strength, speed and performance. The main applications are in the military, industry and medicine, particularly used for the rehabilitation in the extremities. In this paper we presented a exoskeleton with two degrees of freedom for rehabilitation of ankle and knee. The design and construction are based on the instrumentation and control of a right lower limb orthoses. The Exoskeleton uses sensors that estimate the force produced by the human, these sensors are coupled in the SEA (Series Elastic Actuator) used for amplify human strength. The amplification strength can be increased or decreased as needed, allowing the user an evolutionary improvement to reach rehabilitation. The exoskeleton has sensors for estimated angular position and angular velocity of joints, which are used to control the leg movement. The goal is to design a low-cost exoskeleton that provides a reduction in the effort required by the user to remain in in a standing position and to do some static rehabilitation exercises such as flexion and extension of the legs.


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