A schematic diagram of the Dextra multi-finger hand prosthesis is shown at right. The silicone "smart sleeve" fits snugly over the residual limb and registers 3D forces produced by muscle activity within the hard socket. The pocket computer allows the user to retrain the robotic hand for optimal performance. The hand can flex and extend all five digits in response to commands from the natural motor pathways of the user.

Not currently commercially available.