Cool product: $20 artificial knee for patients in the developing world

(PhysOrg.com) -- Last year Joel Sadler and his classmates faced a daunting challenge in their Biomedical Device Design and Evaluation course: Create a low-cost, high-performance prosthetic knee joint for amputees in the developing world. Dubbed the JaipurKnee Project, the team aimed to help rectify lives ravaged by war and diseases such as diabetes.
via dvice.com