THE DEVELOPMENT OF WRIST JOINT REHABILITATION WITH SERVO MOTOR DRIVE FOR STROKE HANDED

Abstract

A stroke begins when the blood flow to the brain is stopped or diminished because of a blockage (ischemic stroke) or a blood vessel rupture (hemorrhagic stroke) that prevents him or her from performing activities that other healthy people can do. Stroke victims typically experience paralysis with one of their arms, lose dexterity and interaction with their affected hand. However, most wrist rehabilitation devices are still manually operated and required a therapist to assist them. Furthermore, the increasing number of stroke patients among the elderly are challenging to find low-cost rehabilitation tools. In order to overcome this problem, a wrist joint rehabilitation device with servo motor drive is developed. This device consists of three MG996R servo motors using predefined Arduino IDE programming so that the device start rotating automatically and the patient can perform their rehabilitation sessions individually. The designing process of this device is done by using an online 3D modeling program, Tinkercad. The MG996R servo motor was physically modeled, and the parameters were identified during the implementation of the device. Testing of the hardware and software was undertaken to analyze the usability of the wrist joint rehabilitation for the stroke patients undergo the rehabilitation exercise according to the basic movement of wrist by comparing the normal ROM of the wrist and achieved ROM of the device can be delivered. As a result, the prototype design has proven to be effective because it can achieve a ROM that close to the normal wrist. It can be concluded that an automatic wrist rehabilitation device can be used to assist poststroke patients in their rehabilitation sessions by performing regular wrist exercises.