| abstract |
A unilateral-driven drug infusion device comprises a drug storage unit (1110) including a drug outlet (20); a screw (1130) connected to a piston (1120) and a driving wheel (1140) provided with wheel teeth (1141) respectively, wherein the driving wheel drives the screw to move by rotation, pushing the piston provided in the drug storage unit forward; at least one driving unit (1150) cooperating with the driving wheel, wherein the driving unit includes at least one driving portion (1151); a power unit (1180) and a reset unit (1170) connected to the driving unit; and an infusion tube (130) including a connection end and a subcutaneous end, when the connection end is connected with the drug outlet and the subcutaneous end enters the subcutaneous, avoiding drug blockage. |