Talk about cool technology. Video in the link.
Last year, Patrick, a 24-year-old Austrian, decided to have his dysfunctional hand amputated and replaced with a bionic hand. He lost the use of his left hand after being electrocuted at work.
Here he demonstrates the extra movement his new bionic hand has given him, opening a bottle and tying his shoelaces, and tests a prototype hand which will give him additional wrist movement.