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 Lending a hand: Student 3D prints functional, affordable prosthetic

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Date posted: 12/01/2017

With a 3D printer and about $15, senior physics major Ryan Bouricius was able to create a functional prosthetic hand that can be used to grip, write and even catch a ball. With the assistance of a non-profit group, the hand will one day be matched to a person in need of such a prosthesis.

The prosthetic hand is designed for a person who still has the ability to move their wrist. By moving their wrist, they can control and use the hand's fingers to grab and hold various objects.

Bouricius, who as a teaching assistant helps run the Ithaca College 3D Printing Lab, became interested in building prostheses after coming across a YouTube video of someone printing and assembling prosthetic hands for little cost. He instantly became interested. After doing some research, he found free designs online, printed out the pieces and assembled a hand in one day. Ever since, he has been working on the prosthesis and figuring out ways it can be improved.

"I like to use it around the apartment to see what problems are faced, because I can only imagine what it would be like to actually need a prosthetic hand," Bouricius said. "It's given me an appreciation for what human hands can do and I've been trying to match it as best as I can."

Through his testing and tinkering, Bouricius has made changes to the original design that give the hand more functionality. For example, he changed the orientation of the hand's thumb, which was originally perpendicular to the fingers, so that it can more effectively grab a variety of items. He has also worked to optimize the grip for various items, such as a marker or a coffee mug.

Physics Professor Michael 'Bodhi' Rogers oversees the 3D Printing Lab and has watched as Bouricius worked to improve the prosthesis. He says that the 3D-printed hand has many advantages over an electronic prosthesis.

"There are people who are working on electronic hands, but they're extremely expensive, not easy to repair, and many are not available for sale," Rogers said.

See the full Story via external site: www.sciencedaily.com

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