ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,040, issued on June 23, was assigned to TIANJIN RILIFINE MEDICAL DEVICE Co. LTD. (Tianjin, China).

"Blood collection needle" was invented by Jiantao Yang (Tianjin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provide a blood collection needle, including a cylinder body provided with a needle core and a needle body therein, in which the needle body is disposed in the needle core and a needle point of the needle body protrudes from a front end of the needle core, and a convex strip extending in a front-rear direction is disposed on an inner peripheral wall of the cylinder body; a launch spring disposed in the cylinder bo...