ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,181, issued on April 7, was assigned to CONVATEC Ltd. (Flintshire, Great Britain).
"Ostomy appliance" was invented by Marcus Hoggarth (London), Oliver Poyntz (London), Kimahni Emsley (London) and Daljinder Sanghera (London).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ostomy appliance that has inner and outer walls of flexible sheet material. The inner wall has a stomal inlet and the outer wall has a gas vent. A separation wall is between the inner and outer walls forming separate first and second chambers and has a liquid and gas permeable separation filter. In use the first chamber is arranged to receive stomal output directed into the ostomy ...