Three men in Austria have become the first to have a hand replaced by a mind-controlled bionic version.

Three men in Austria have become the first to have a hand replaced by a mind-controlled bionic version. 

Each of them had sustained injuries from either climbing or motorcycle accidents, which left them with very little movement ability in their existing limb. 

Now, they can pour water from containers, use keys, and even button their shirts. 

The replacement hand works by circumventing a damaged nerve center that, when working properly, is what transmits signals from the brain to the lower arm. 

Doctors extracted muscle and nerve tissue from other parts of the patients’ bodies and implanted them along the impulse path. 

The existing portion of the arm from below the elbow to the fingertips was amputated, and the bionic version was attached. 

Prior to the procedure, the recipients underwent an extended neural tr