US Patent Issued to NANJING DRUM TOWER HOSPITAL on June 3 for "Great saphenous vein collection devices using double cannula knife" (Chinese Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,110, issued on June 3, was assigned to NANJING DRUM TOWER HOSPITAL (Nanjing, China).

"Great saphenous vein collection devices using double cannula knife" was invented by Can Xu (Nanjing, China) and Dongjin Wang (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A great saphenous vein collection device using a double-sleeve knife, including a grip, a sleeve cutting knife, and a protective sleeve is disclosed. The protective sleeve is provided inside the sleeve cutting knife and the sleeve cutting knife is rotationally connected to the protective sleeve; the protective sleeve penetrates through the grip; the grip is provided with a drive me...