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The first prosthetic was found on an Egyptian mummy and was made out of wood and leather.
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The leg is also known as the Caupa leg. It was made of bronze, iron, and also made with a wooden core.
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It was created during the Middle Ages out of wood and metal. It was primarily used by those could get them fitted or by craftsmen.
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This hand was made out of iron and springs and releases were added to made the hand slightly more functional.
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The arm was created with bronze and copper, and was only attached to the arm. It is not functional though.
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The non locking knee was made out of a series of gears and metal to allow the knee to easily function as a normal knee.
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Instead of creating a leg that is completely stiff, the ankle was created with gears and straps to allow regular walking.
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These hands and fingers were often made out of rubber during the Civil War Era and could often be replaced with brushes, hooks, etc.
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This is one of the earliest forms of prosthetic that focused on allowable movement around the knee. The knee could move with the press of a button that released springs and/or strings.
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This foot adjusts so that when the person is walking, it adjusts to the pressure spots on the foot so that it feels more realistic when walking. Basically, it is taking place of the nervous system that would've been in the foot.
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Researchers are design prosthetic limbs that that not only allow people to "feel" again, but are creating limbs that will get rid of the phantom pain wherever the limb used to be located. They are still trying to perfect the LUKE arm so that it is more functional and reduces the pain.
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Researchers are continuing to try prosthetic limbs that will change the shape and size to match what the limb would actually do when there was movement and trying to create limbs that can match a person's skin tone almost perfectly.
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1) http://sitn.hms.harvard.edu/flash/2013/limb-prosthetics/
2) http://unyq.com/the-history-of-prosthetics/
3)https://www.google.com/amp/s/www.washingtonpost.com/health/new-prosthetic-limbs-go-beyond-the-functional-to-allow-people-to-feel-again/2019/12/13/ac2fac10-d4ca-11e9-86ac-0f250cc91758_story.html%3foutputType=amp
4) https://www.google.com/amp/s/www.theverge.com/platform/amp/2018/7/25/17611812/brain-controlled-robot-arm-supernumerary-bmi
