ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,303, issued on July 29, was assigned to MEDTRUM TECHNOLOGIES INC. (Shanghai).
"Patch-type drug infusion device" was invented by Cuijun Yang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A patch-type drug infusion device includes an infusion unit. The infusion unit includes a drug storage unit, a piston, a rigid screw, a rotating shaft, a rotatable driving unit, a driving wheel provided with wheel teeth, a power unit and a rebound unit. The driving unit can rotate around the rotating shaft, driving the driving portion of the driving unit to push the wheel teeth to rotate the driving wheel which engages the rigid screw to move forward in a ...