Students develop prosthetic arm controlled by brain signals

The Artificial Muscle-Operated (AMO) arm, which was developed by third-year student Thiago Caires and second-year student Michal Prywata, is claimed to give amputees more range of movement than other prosthetic arms.

To use the arm, individuals wear a headset that senses a signal from the brain, which is wirelessly sent to a computer in the arm. The computer then compares the signal to others in a database and once the correct match is found, the appropriate control signals are sent to pneumatic ’artificial muscles’, which create the desired movement.

Simulating the expansion and contraction of real muscles, the system makes use of compressed air from a small, refillable tank in a user’s pocket.

The researchers claim that the arm will cost one-quarter of other functional prosthetic arms, depending on the complexity of the prosthesis.

They also say that while traditional prosthetics may require weeks of learning and training, the AMO arm can be mastered in minutes.