The Flex-Foot Cheetah incorporates untraditional materials to solve a design problem that had vexed the medical field for years: finding a prosthetic solution that allows the user to live a normal, active lifestyle. Van Phillips lost his leg below the knee at the age of 21. Unsatisfied with the prosthetics then available to him, he...
Why? The U.S. Defense Advanced Research Projects Agency (DARPA) sponsored research for this configurable bionic-arm prototype, which mimics the speed and dexterity of a natural limb. Neural-integration strategies are being tested to control the arm and restore sensory feedback, from injectable myoelectric sensors that transmit signals instructing movement to muscle reinnervation, allowing for thought-controlled prostheses.