I'm wondering if a CPB pump (heart-lung machine) could be used to keep a Covid-19 patient alive while their lungs are too infected to be able to supply sufficient oxygen. I realize that CPB pumps were designed to supply oxygen and pump blood when a patient's heart is not functioning, such as during cardiac surgery. But could the pump also be used to supply oxygen during the period of time that a Covid-19 patient's lungs aren't functioning adequately?