By combining different scientific fields, the myoelectric team aims to develop an electromyography-controlled 3D printed prosthetic hand which enables the user to control their prosthesis by tensing or relaxing their muscle. Our goal is to get a fully functioning prototype with 2-3 grips that is strong enough to support the dominant hand in everyday activities, as well as being light enough for the user to use comfortably throughout the day. The myoelectric prosthetic hand will amplify the range of motion and control the operator may have, in addition to increasing his or her self-esteem.
By closely considering the needs of people with limb deficiencies the shape, size and weight have been key considerations when developing our prototype. The prosthetic hand is continuously tested throughout the process to ensure that the strength and durability is appropriate. This is then combined with the physiological understanding of the human hand and the systems are tested together to verify the proper operation of the prosthesis.
When a muscle is tensed the electrical impulses can be picked up by electrodes placed on the skin. This signal is then amplified and processed and can be used to control the small motors implemented into the prosthesis, and ultimately open/close the hand. This allows the user to control the prosthetic hand without moving any of his or her limbs.