Improvements to prosthetic devices are things that many people like to imagine. People often congratulate themselves for thinking outside the box, and for challenging traditional thinking. The difficulty, however, is not always in imagining something fantastic, but in implementing it in a sustainable way—such that any patient could acquire one—is another game entirely. The legs listed below are, as far as we know, entirely concepts, and have not been implemented for a single patient. They are, however, interesting for the ways in which they challenge convention. See the similar page on arms.
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Eames chair-inspired leg is a student project from Joanna Hawley, while she was at Carnegie Mellon.
The Nike Prosthetic Leg is also a student concept, by Colin Matsco, also at Carnegie Mellon.
This interesting concept for the developing world was also a student project, by Tillmann Beuscher, while a graduate student at the University of Applied Sciences, Darmstadt, Germany. Here is Tillman's data sheet for the leg.
Koo Ho Shin designed this sports-oriented leg as a graduate student at Art Center College of Design, Pasadena, Ca.
