A new prosthetic hand uses individually movable fingers to hold a credit card, use a keyboard and lift a heavy bag.
Researchers bill it as the world’s first commercially available prosthetic hand that can move each finger separately. The i-LIMB, made by the Scottish company Touch Bionics, is being tested at the Orthopedic University Hospital in Heidelberg, Germany.
The hydraulic hand went on sale in Britain last year for about $17,500 and is being used by a small number of people. The company began operations in the United States earlier this year and plans to make the device more widely available.
Unlike similar models that allowed gripping with just the thumb and one or two fingers, the i-LIMB allows a user to grab something with all five. It also feels softer and more natural than the typically hard prosthetics of old, its maker says.
Flexible hydraulic drives are located directly in the movable finger joints, and the prosthetic hand gives feedback to the user’s stump, enabling the amputee to sense the strength of the grip.