Photos: Bionic hand gets thumbs-up

An i-Limb Hand holds a coin.

The i-Limb can form different types of grip: a power grip, which looks like a fist; a key grip, where the thumb meets with the middle of the index finger, as when turning a key to turn on a car; and a pincer grip, where the thumb and fingertips meet together to hold a small object, as is shown here.

Photo by Touch Bionics