SILVER SPRING, Md. & RESEARCH TRIANGLE PARK, N.C.--(BUSINESS WIRE)--United Therapeutics Corporation (Nasdaq: UTHR), a public benefit corporation, today announced that the U.S. Food and Drug Administration (FDA) has granted premarket approval (PMA) of the LungFXTM device (LungFX) for use in centralized ex vivo lung perfusion (EVLP), a procedure that enables donor lungs to be assessed outside the body after procurement and before transplantation. The PMA, submitted by United Therapeutics’ wholly