
Before surgery, most surgeons keep heart replacements on ice and the organs degrade within just a few hours. TransMedics’s Organ Care System keeps hearts bathed in blood and pumping, so they remain useable for up to eight hours—long enough to travel cross country. Abbas Ardehali, one surgeon who now uses the system, says it “can expand the donor pool. Fewer patients will die waiting for a new heart.” $40,000