ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,543,728, issued on Feb. 10, was assigned to ORGANOX Ltd. (Oxford, Great Britain).

"Precision oxygen flow control for organ perfusion systems" was invented by Daniel Voyce (Bicester, Great Britain) and Constantin Coussios (Oxford, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A perfusion system for the extracorporeal perfusion of an organ comprises a perfusion fluid circuit (100) for circulating perfusion fluid through the organ, oxygenation means (104) for adding oxygen into the perfusion fluid and having an oxygen inlet (126), an oxygen concentrator (140) having an oxygen outlet (144), a plenum chamber (148) connected to the outlet of th...