Comprehensive Design of Prosthetic Hand with Practical and Reliable Control

To improve the life of hand-impaired people, we proposed a comprehensive design of a prosthetic hand. The design process includes the hardware design, EMG signal extraction and recognition, and a practical IoT-integrated controlling strategy, all of which secure the consistency and accuracy of the designated motions of the prosthetic hand. Eventually, the new strategy reduces the error rate and provides a more practical, thoughtful experience for the people in need.

Introduction

Human hands boast the complexity of joints and precise, sensitive motions supported by the neural system. With 29 muscles driving 19 bones and 19 articulations [1], [2] a hand performs various gestures and motions, which enable humans to express emotions, operate delicate machines, and, more importantly, satisfy the fundamental grasping motions in daily life. People who have a disability of hands often encounter difficulties in their lives. Researches have been dedicated to developing EMG-controlled prosthetic hands to improve the lives of hand-impaired individuals. In those researches, Electromyography (EMG) records and analyzes the electrical activity of skeletal muscles.