Abstract
This research aims to design and develop the two-channel surface electromyography (sEMG) control unit for an electric hand gripper, projected for amputee hand training device. The intention of this medical device is to use it before using the prosthetic hand. The amputee hand training device has developed based on the principle of physiology, biomedical electronics and microcontroller. The prototype consisted of three main units: signal detector and signal conditioning modules, signal control and processing components using the ATMEL 328 microcontroller, and the 2-Degrees of Freedom (DoF) electric hand gripper with DC servo motors. The performance testing was done by the users controlled the 2-DoF electric hand gripper using their sEMG signal. The functional assessment results showed that the success rate of grasping accuracy of the three main basic geometries were 93% of cylinder, 90% of cubic and 40% of egg. The success rate of the rotation of a wrist hand was 83%. Each calculation was calculated for 30 times in performing its specific function. The production cost of this medical device was around £165.
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