ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,396, issued on March 25, was assigned to TERUMO K.K. (Tokyo).
"Catheter assembly" was invented by Masahiro Ishida (Hadano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A catheter assembly includes: a catheter including a main lumen and one or more sub lumens provided separately from the main lumen; and an inner needle extending through the main lumen; and a deflection suppression mechanism configured to suppress deflection of the inner needle. The one or more sub lumens respectively communicate with one or more sub openings formed in the catheter. The catheter is configured to advance with respect to the inner needle. The deflection suppres...