| 摘要 |
Disclosed is a drive system of a syringe pump, comprising: an outer sleeve (11) with an inner wall thereof being provided with a resistor sheet slot and a conductive membrane sheet slot, both of which extend axially; a resistor sheet (12) provided in the resistor sheet slot and a conductive membrane sheet (13) provided in the conductive membrane sheet slot; an injection pushrod (14) slidably provided in the outer sleeve (11), wherein a hermetic seal is maintained between the injection pushrod (14) and the inner wall of the outer sleeve (11), and a cavity having an opening is provided on the injection pushrod (14), the opening of the cavity being provided at the tail end of the injection pushrod (14); an elastic conductive contact sheet (15) fixedly provided on the injection pushrod (14), with one end of the elastic conductive contact sheet (15) in contact with the conductive membrane sheet (13), and the other end in contact with the resistor sheet (12); and a drive device provided in the cavity and driving the forward and backward movement of the injection pushrod (14). The drive system can ensure the accuracy of administration of drugs. |
