ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,399, issued on April 7, was assigned to CONVATEC Ltd. (Flintshire, Great Britain).

"Catheter" was invented by Mingliang Lawrence Tsai (Holmdel, N.J.) and Pavel Zeliankevich (Chester, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example catheter includes a tubular body portion and a cuff. The tubular body portion has a proximal end portion and a distal end portion. The distal end portion defines a distal face of the tubular body portion. The cuff is mounted to the distal end portion and defines a distal face of the cuff. In certain embodiments, the tubular body portion terminates within the cuff such that the distal face of the bod...