Journal of Rehabilitation Sciences & Research

Design and Control of an Active Wrist Orthosis for Rehabilitation

Document Type : Original Articles

Authors

zahra vahabi 1
Ali Mokhtarian 2
mohammad taghi karimi 3
faezeh jahanshah 4
reza arefi 5

1 Assistant Professor, Department of Biomedical Engineering, School of Engineering, University of Isfahan, Isfahan, Iran

2 Assistant Professor, Department of Mechanic Engineering, Islamic Azad University, Khomeinishahr Branch, Khomeinishahr/Esfahan

3 Professor, Orthotics and Prosthetics Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

4 Department of Mechanic Engineering, Islamic Azad University, Khomeinishahr Branch, Khomeinishahr/Esfahan, Iran

5 Department of Mechanic Engineering, Babol Noshirvani University of Technology, Babol, Iran

https://doi.org/10.30476/jrsr.2021.89082.1126
Abstract
Background: In this study, an active orthosis has been designed to rehabilitate patients with weak wrist flexor and extensor muscles.
Methods: First, the mechanical design of the actuating mechanism with a linear servo motor to provide the desired wrist rotation, is performed in SolidWorks software. Also, to determine the force created by the actuator during flexion and extension of the wrist, the movement of the mechanism is simulated in Visual Nastran software. After molding the patient's wrist, the main body of the orthosis is made by forming the thermoplastic sheets on the mold, and the components of the mechanical part of the mechanism are installed on it.  Then, the hardware part of the electronic circuits to drive the motor and to communicate between the control modules and the actuator is designed. For the programming of microcontrollers and synchronizing of deriver to the joystick, Bascom AVR software is used. The simulation of electrical circuit is performed in Proteus software and the printed board circuit is made in Altium Designer software.
Results: The results of applying this orthosis on the wrist of a healthy subject indicate its proper performance in creating an acceptable angle range for the wrist extension and flexion.
Conclusion: The use of the designed active wrist orthosis can improve the rehabilitation process of the patients with weakness in their wrist muscles.

Keywords

Wrist
Rehabilitation
Orthosis
Active
Extension
Flexion
Control
1. Hentz VR, LecClercq C. Surgical rehabilitation of the upper limb in tetraplegia. First Edition. Saunders Ltd, Philadelphia; 2002.
2. Kwon BK, Tetzlaff W, Grauer JN, Beiner J, Vaccaro AR.Pathophysiology and pharmacologic treatment of acute spinal cord injury. The Spine Journal. 2004; 4(4): 451–464.
3. Mokhtarian A, Fattah A, Agrawal SK. An assistive passive pelvic device for gait training and rehabilitation using locomotion dynamic model. Indian Journal of Science and Technology. 2013;6(3): 4168-4181.
4. Iravani Rad MA, Mokhtarian A, Karimi MT. Design and fabrication of an active knee orthosis for rehabilitation of lower limbs. Journal of Rehabilitation Sciences & Research. 2019; 6(3): 109-116.
5. Jahanshah F, Mokhtarian A, Karimi MT. Design, modeling and fabrication of an active external orthosis for rehabilitation of lower of people with disability. Journal of Modeling in Engineering.2019; 17(56): 407-420.
6. Eslami M, Mokhtarian A, Pirmoradian M, Seifzadeh A, Rafiaei M. Design and fabrication of a passive upper limb rehabilitation robot with adjustable automatic balance based on variable mass of end-effector. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2020; 42(12): 1-8.
7. Eslami M, Mokhtarian A, Pirmoradian M, Seifzadeh SAR,Rafiaei SM. Designing and creating a virtual reality environment and a wearable glove with control and evaluation capability to rehabilitate patients. Journal of Health and Biomedical Informatics.2020; 7 (2): 161-170.
8. Webster J, Murphy D. Atlas of orthoses and assistive devices.Fifth Edition. Elsevier. 2018.
9. Jansen CW, Olson SL, Hasson SM. The effect of use of a wrist orthosis during functional activities on surface electromyography of the wrist extensors in normal subjects. Journal of Hand Therapy.1997; 10(4): 283-289.
10. Johansson L, Björing G, MHägg G. The effect of wrist orthoses on forearm muscle activity. Applied Ergonomics. 2004; 35(2):129-136.
11. Hu XL, Tong KY, Li R, Xue JJ, Ho SK, Chen P. The effects of electromechanical wrist robot assistive system with neuromuscular electrical stimulation for stroke rehabilitation. Journal of Electromyography and Kinesiology. 2012; 22(3): 431-439.
12. Arnold S, Janson R. Wrist extension or flexion mobilization orthosis. The dinosaur design. Journal of Hand Therapy. 2017;30(1): 109-112.
13. Jackman M, Novak L, Lannin N, Galea C. Immediate effect of a functional wrist orthosis for children with cerebral palsy or brain injury: A randomized controlled trial. Journal of Hand Therapy.2019; 32 (1): 10-16.
14. Zhang M, McDaid A, Zhang S, Zhang Y, Xie SQ. Automated robotassisted assessment for wrist active ranges of motion. Medical Engineering & Physics. 2019; 71:98-101.
15. Miller KJ, Gallina A, Neva JL, Ivanova TD, Snow NJ, Ledwell NM, Xiao ZG, Menon C, Boyd LA, Garland SJ. Effect of repetitive transcranial magnetic stimulation combined with robotassisted training on wrist muscle activation post-stroke. Clinical
Neurophysiology. 2019; 130(8): 1271-1279.
16. Zhang L, Li J, Cui Y, Dong M, Fang B, Zhang P. Design and performance analysis of a parallel wrist rehabilitation robot (PWRR). Robotics and Autonomous Systems. 2020;125: 103390.
17. Ryu J, Cooney WP, Askew LJ, An KN, Chao EYS. Functional ranges of motion of the wrist joint. The Journal of Hand Surgery.1991; 16(3): 409-419.
18. Winter DA. Biomechanics and motor control of human movement.Fourth Edition. New York: Wiley. 2009.
Journal of Rehabilitation Sciences & Research
Volume 8, Issue 1
March 2021
Pages 46-50

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