ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,071, issued on Oct. 7, was assigned to KANEKA Corp. (Osaka, Japan).

"Light irradiation medical device" was invented by Hironori Takata (Settsu, Japan) and Toshihiko Uto (Settsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light irradiation medical device comprising: a shaft having a lumen extending in the longitudinal direction; and a light guiding device that is disposed in the lumen of the shaft and is movable in the longitudinal direction. The light guiding device extends in the longitudinal direction and has a light diffusion part at a distal part of the light guiding device. The shaft has: a first window in a peripheral wall of a dist...