CHEAPER KNEES

Disruptive Opportunity

Amos Winter is aiming to develop a passive, low-tech prosthetic knee that performs nearly as well as high-end prosthetics, at a fraction of the cost. Now Winter and his colleagues have taken a significant step toward that goal—calculating the ideal torque that a prosthetic knee should produce in order to induce normal walking.

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INNOVATION

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Because magnets do not contain energy—but they can help control it…