Injection device with puncture function, method for controlling injection device with puncture function, chemical solution administration device, and method for controlling chemical solution administration device
An injection device with a puncture function includes, in a single casing, a cylindrical cartridge in which insulin is enclosed, a cartridge holder to which the cartridge is inserted, a needle inserted at a front end of the cartridge, a reciprocation unit for reciprocating the cartridge toward the needle, and an extrusion member for extruding the insulin from a rear end of the cartridge toward the needle, and the motion speed and the motion amount of the reciprocation unit are made variable.