A 3D printer saved the life of a baby boy with a rare disease that kept him from breathing properly, doctors are reporting in the New England Journal of Medicine. The boy, Kaiba Gionfriddo of Ohio, had been diagnosed with severe tracheobronchomalacia, a rare respiratory condition that caused his airways to collapse, blocking the flow of air to his lungs daily. About 1 in 2,200 babies are born with the condition, but only 10 percent of them have cases as severe as Kaiba’s, according to his doctors. The boy’s parents, April and Brian, learned something was wrong when he was 6 weeks old and the infant turned blue while the family was out to eat. By the age of 2 months, Kaiba had to be intubated to breathe. Despite the breathing tube and a ventilator he also required, his breathing could not be maintained sufficiently. He needed to be resuscitated on a daily basis.