ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,257, issued on June 3, was assigned to ZHENGZHOU ONE MILLIMETER MEDICAL TECHNOLOGY Co. LTD. (Henan, China).
"Skin retraction system and skin retractor therefor" was invented by Mingli Zhang (Zhengzhou, China), Songlin Li (Zhengzhou, China), Shuqiang Xie (Zhengzhou, China) and Lanjin Xu (Zhengzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates to a skin traction system and a skin retractor thereof. When the skin retractor of this disclosure is in use, a winding roller is rotated to wind a bracing wire on the winding roller, the winding roller is in a lock position, the locking is achieved through the matching of a scotch...