And that new devices would break in new ways. Good thing about old devices, is that we gathered enough knowledge to know how to fix them. Considering the amoun

And that new devices would break in new ways. Good thing about old devices, is that we gathered enough knowledge to know how to fix them. Considering the amount of iron lunges still in use, it would probably be more cost effective to keep fixing the ones already in use, until all the current patients die.