Mechanical Fingers Give Strength, Speed to Amputees

If the X-Finger looks like a prop from The Terminator, relax. It isn’t out to kill you, and it isn’t robotic. In fact, it’s a mechanical prosthetic finger so effective it provides articulation as fast and flexible as the real thing. Invented by Dan Didrick of Naples, Florida, the device has no batteries, electronics, servos or actuators. Instead, each digit incorporates a simple mechanism which, when pushed by the surviving part of the wearer’s finger, curls a set of artificial phalanges