ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,948, issued on Sept. 1, was assigned to MEDTRUM TECHNOLOGIES INC. (Shanghai).
"Unilaterally driven drug infusion system" was invented by Cuijun Yang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A unilaterally driven drug infusion system, includes: an infusion unit, including a reservoir, a piston and a screw, the piston arranged in the reservoir; a driving unit including a rotating shaft and a driving member, the driving member including a driving end; a driving wheel provided with wheel teeth; a linear actuator and a reset unit respectively connected to the driving member; a control unit controlling the linear actuator or the reset unit...