ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,496, issued on Jan. 13, was assigned to SMAS TECHNOLOGY Co. LTD. (Taoyuan, Taiwan).
"Safety injector" was invented by Yu-Feng Liu (Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A safety injector includes: an injection module having an injection cylinder and a pullable piston rod; a needle module including a needle seat and an injection needle; the needle seat having a seat body and a buckle. In installation state, a safety sleeve covering movably around the injection cylinder between an installation position and a protection position. In the installing position, a first end portion of the safety sleeve is near the buckle and the seco...