ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,384, issued on June 17, was assigned to ANHUI BAINUOJIA MEDICAL TECHNOLOGY Co. LTD (Huangshan, China).

"Surgical stapler" was invented by Bubing Zhu (Nanjing, China), Zhen Wang (Nanjing, China), Huamin Sun (Huai'an, China) and Dongming Li (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surgical stapler includes an anvil and a cartridge that cooperate with each other, a handle, and a connecting tube for connecting the cartridge to the handle. A stent mounting rod is arranged at a front end of the anvil, and a stent for distracting an orifice is movably connected to the stent mounting rod. The stent has a flexible and deformable tub...