Bionic arms. How do amputees with bionic arms control the fingers and wrists to do things like picking up a cup and drinking so smoothly?

Question

This was asked a few years ago on here, but things have apparently improved a lot since then.

The top answer from before was describing a process that was a little cumbersome, but there’s videos of folks with new arms moving them and using their new hands much more smoothly than I would have thought possible using the older method described.

In: 100

Answer 1

The first bionic arm was given to a man from my hometown. He was working on a powerline and was electrocuted. His arm had to be amputated all the way to the shoulder.

Four of the nerves that used to control his arm were relocated to his torso, and that’s what he had to learn to use to control the bionic arm.

He lost both of his arms. The other one was replaced with a traditional prosthetic.

https://www.rheaheraldnews.com/news/local/article_3b526b8d-5638-5759-b946-54766e78eb58.html