ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,247, issued on Sept. 2, was assigned to MEDTRUM TECHNOLOGIES INC. (Shanghai).
"Drug infusion device" was invented by Cuijun Yang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "This invention discloses a drug infusion device, including: a drug storage unit; a piston and a driving wheel respectively connected with a screw, the driving wheel drives the screw to move by rotation, the piston is arranged in the drug storage unit, the screw advances the piston to move; a driving unit cooperating with the driving wheel, the driving unit includes more than two driving arms, the driving unit, through the multiple pivoting movement modes, drives driv...