A prosthetic hand able to receive signals from inside the arm could give users touch-sensitive dexterity.
Typically, the electrodes that help control prosthetic hands are placed on the skin to read signals from the muscles beneath. However, the new hand prosthesis designed as part of the DeTOP project relies on signals read directly from the nerves and muscles via implants in the arm. The signals from the nerves—sixteen in total—were translated into commands for the prosthesis. Not only does the new system allow for more dexterity, the technology also provides tactile sensations to help the user determine how much force to use when gripping.
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