ALEXANDRIA, Va., March 26 -- United States Patent no. 12,256,925, issued on March 25, was assigned to Touchstone International Medical Science Co. Ltd. (Suzhou, China).

"Closure driving mechanism and surgical stapler" was invented by Teng Shan (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A closure driving mechanism and a surgical stapler are provided. The closure driving mechanism includes a first slider, a locking member, a closure driver and a pushing block, the first slider is connected to the closure driver and includes a first fitting portion, the locking member includes a second fitting portion and a first lifting portion connected to each other, the pushing block includes a second lif...