ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,330, issued on Nov. 18, was assigned to KANEKA Corp. (Osaka, Japan).
"Catheter" was invented by Toshiya Kisa (Okaya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The objective is to provide a catheter that can realize a desired curve shape by preventing the curving axis of the catheter distal part from twisting, and preventing the catheter from kinking and decreased pushability. Disclosed is a catheter (1) having a shaft (2); at least one wire (30); a coil (60); a leaf spring (40) having a first connection part (41) where its proximal part is fixed to a distal end part of the coil (60); and a cover tube (50), wherein the coil (60) has a fixe...