According to CBS News, three baby boys are alive today thanks to the wonders of 3D printing. All three patients have been diagnosed with tracheobronchomalacia, a condition where the windpipe occasionally collapses and prevents normal breathing. The condition has no cure, a low life expectancy, and doctors were doubtful as to whether any of these children would even make it out of the hospital alive. Now, all three have received 3D-printed splints that help keep their airways open so they can breathe properly. The device is designed to change shape as the children grow, and eventually it will be reabsorbed by the body as the condition is cured.