Man serves two arm prostheses with his thoughts




US researchers say they have for the first two with thoughts controlled arm prostheses successfully tested at a man. The arms of the man his amputated forty years ago, but the innovation he can again make different movements.

The man was forty years ago in an accident in which he lost both his arms. Through the development of the Applied Physics Laboratory of Johns Hopkins University, he can with art arms but again make certain movements. He can control the arm prostheses with his thoughts. There are incentives for the remaining nerves sent his shoulders, and the robot arms move.

The American had to undergo surgery. The suit targeted muscle reinnervation: This is a relatively new method with adjustments to initial nerves, which were once responsible for controlling the arm and hand, are made. It is thereby possible according to the researchers to control the prostheses by thinking of the action to be performed.

After the method was tested, the man was in a specially designed harness hoisted supported prostheses. Once everything was aligned, the innovation was tested in practice. The man is displaced by that a test object from a lower to a higher shelf plank. The artificial arm had to make eight different moves to do that act. Before that required ten days of training and that was far below expectations, according to the researchers.

The arm prostheses are not comparable with human arms. In the current design, the shoulders can, elbows, wrists and hands indeed be moved, but that can not at the same time. The researchers say that the person must select which motion he wants to make. The man should take a short rest between the different actions. To address an object, all of the elements must therefore first be placed in the correct position.

The researchers believe that there is still much room for further development, and therefore at the beginning of the process. The next goal of the project is to look at how innovation works in everyday life.


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