Design of A 3D Prosthetic Hand Based on Electromyogram Signals

Upper-limb amputees face many challenges in conducting their daily activities. A prosthetic hand is a solution that enables the amputee to act normally. The study presents a 3D printable prosthetic hand called the Shorouk Academy (SHA) hand. The prototype was designed based on the electromyogram (EMG) signal as the driver for hand movement. According to the threshold of the EMG signal, two types of hand movements were presented. The first act is finger flexion and extension, and the second type is three patterns of hand grips. The SHA hand was manufactured from plastic in order to be lightweight and low-cost. The prosthetic hand was tested and validated to fulfill the design requirements. It proves its functionality in different motion positions.