ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,112, issued on March 11, was assigned to DENKA COMPANY Ltd. (Tokyo).
"Artificial blood vessel" was invented by Akira Miyama (Tokyo) and Mutsumi Matsumoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An artificial blood vessel that gives a sensation of needle insertion upon puncturing and a needle thread passability resembling those of blood vessels of animals including humans, and that has high liquid leakage preventability includes two or more layers which contain a component (A) hydrogenated block copolymer and a component (B) oil, at least one of the layers further containing a component (C) lubricant. It is preferable that the artifici...