Picture a woman reaching for a coffee cup with a hand that sits at the end of a prosthetic arm. She doesn’t look at it or think about it. Her hand just closes. A few years ago, that scene belonged mostly to science fiction. Today it is a clinical reality for a growing number of people, and the technology behind it is advancing quickly. Robotic prosthetics, often called bionic limbs, are among the most visible examples of how robotics, sensor technology, machine learning, and rehabilitation medicine have converged. They do more than replace a missing body part. The best systems read the body’s own signals, interpret the wearer’s intent, and move in a coordinated way.
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