ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,398, issued on Feb. 3.

"External end device equipped with a tissue-ingrowth cuff" was invented by Nicola Grandolfo (Triggiano, Italy) and Emilio Magaldi (San Mango Piemonte, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "An external end device has a casing, including a base, in which a distal opening is formed which receives a funnel-shaped septum having a tube trunk. Inside the tube trunk, the catheter is connected to the distal section of the fitting. A tubular coating has a proximal end adapted to be grafted onto the tube trunk and a distal end coaxially adhering to the catheter. A pair of bands of tissue-ingrowth material is fixed on the tu...