ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,142, issued on May 26, was assigned to Hangzhou EndoNom Medtech Co. Ltd (Hangzhou, China).
"Stent-graft system" was invented by Wayne W Zhang (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stent-graft system (100) includes a mainbody stent-graft (1), an outer branch (2), and at least one inner branch (3, 4). The mainbody stent-graft (1) is a tubular structure with covering membrane (102) on a surface thereof, forming a radially recessed concave portion (103) thereon. The outer branch (2) extends outside the mainbody stent-graft (1), with one end attached to a side wall of the concave portion (103). The inner branch (3, 4) is attach...