ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,289, issued on Oct. 20, was assigned to NIPRO Corp. (Osaka, Japan).
"Double-lumen catheter" was invented by Yusuke Matsuda (Osaka, Japan), Takuma Nakamura (Osaka, Japan), Yuya Fujiki (Osaka, Japan) and Shota Nakai (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A double lumen catheter includes: a circumferential wall 101 forming a lumen extending from a proximal end to a distal end; and a partition 102 dividing the lumen into a first passage 110 and a second passage 120 extending in a longitudinal direction. Distal ends of the first passage 110 and the second passage 120 of the circumferential wall 101 are aligned with each other. The p...