VA Studies Advanced Prosthetic Arm
New Mobility for Veterans, Service Members, Other Americans
“This arm is a high-tech example of how VA researchers are continually modernizing the materials, design, and clinical use of artificial limbs to meet Veterans’ lifestyle and medical needs,” says Dr.
In collaboration with the Defense Advanced Research Projects Agency (DARPA), the study marks the first large-scale testing of the arm, which allows those who have lost a limb up to their shoulder joint to perform movements while reaching over their head, a previously impossible maneuver for people with a prosthetic arm.
The study is under the direction of Dr.
A unique feature of the advanced arm is its control system, which works almost like a foot-operated joystick. An array of sensors embedded in a shoe allows users to maneuver the arm by putting pressure on different parts of the foot. The current version uses wires to relay the signals to the arm, but future versions will be wireless.
The arm can also be adapted to work with other control systems, including myoelectric switches, which are wired to residual nerves and muscles in the upper body and respond to movement impulses from the brain, shoulder joysticks or other conventional inputs.
VA prosthetics research also includes vision and hearing aids, wheelchairs and propulsion aids, devices to help people with brain injuries to become mobile, and adaptive equipment for automobiles and homes — “everything that’s necessary to help Veterans regain their mobility and independence,” said Downs.
SOURCE U.S. Department of Veterans Affairs