Another common one is the prosthetic arm. The prosthetic arm is a lot more intricate than its leg counterpart because the hands do complex activities such as gripping and grasping things. Many years ago, the prosthetics were not capable of moving with accordance to the brain but now, thanks to the advancement in technology, they are more real than before.
Robotic arms are now being made so that they can move according to how the patient wants them to. Of course, the accuracy is still not the same as a real hand but improvements are being pursued every day...
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