New ex vivo machines are on trial at the University of Toronto. The idea of an ex vivo machine came from a sketch drawn by Leonardo da Vinci. These new machines that are built to keep organs alive outside of the human body for as long as 12 hours. These 12 hours are key for doctors to inspect the organ and be sure that it is 100 percent healthy and viable to be transplanted. One of the most underutilized organs are lungs; about 80 percent of lungs go unused because doctors do not have enough time to determine whether or not it is viable to be transplanted. So far the machine has hit milestones, allowing lung donations to go up by 50 percent. Lungs are the most temperamental organs and tend to accumulate fluid, blood clots, or become damaged
