tailieunhanh - Mechanical design and control of an active wrist orthosis

To deal with this occupational disease, an active wrist orthosis device is designed first, and then, its successful operational functionality is shown in MATLAB/Simmechanics environment using a fuzzy logic controller. | Journal of Automation and Control Engineering Vol. 4, No. 6, December 2016 Mechanical Design and Control of an Active Wrist Orthosis Ergin Kilic and Erdi Dogan Suleyman Demirel University, Mechanical Engineering Department, Isparta, Turkey Email: erginkilic@, erdidgn90@ Abstract—Lateral Epicondylitis and Medial Epicondylitis are occupational illnesses and they are frequently seen on people who are making excessive extension and flexion wrist movements more than 2 hours a day. Patients have to give a break in the middle of their working process because of the pain at the elbow location while performing extension and flexion wrist movements against resistive forces. To deal with this occupational disease, an active wrist orthosis device is designed first, and then, its successful operational functionality is shown in MATLAB/Simmechanics environment using a fuzzy logic controller. Index Terms—active wrist orthosis, fuzzy logic controller, EMG Signal Processing I. INTRODUCTION Lateral Epicondylitis, or “tennis elbow” is a common musculoskeletal disease defined as being an inflammation or a tendon torn at elbow location called lateral epicondyle [1]. The ones who should perform repetitive extension wrist movements more than 2 hours a day due their occupation will probably get sick from this painful disease. The prevalence of the lateral epicondylitis was reported about for the 45-54 age range in the society [2]. Medial Epicondylitis is another wrist disease which is occurred due to making excessive flexion wrist movements. It is impossible to continue daily wrist activities due to pain in the later stages of the diseases. This study aims design and control of an active wrist orthosis (AWO) which would be used to assist the extension and flexion wrist movements for the prevention or the treatment of the aforementioned diseases. Orthoses are mainly used for the rehabilitation of patients who lose their limbs’ function completely .