The invention discloses an
epinephrine pen. The
epinephrine pen comprises a pen body. A
medicine storage device is arranged in the pen body, the bottom end of the
medicine storage device is connected with a
piston rod through a
medicine sealing film, medicine storage device springs are symmetrically installed on the two sides of the medicine storage device, a medicine outlet of the medicine storage device is located below a lower needle, the lower needle is connected with an upper needle through a medicine tube, the medicine tube is sleeved with a spring and an ejection base, the spring is installed on the ejection base, and a spring chuck is arranged at the bottom end of a wedge-shaped device. The
epinephrine pen is simple in structure, low in manufacturing cost and high in practicality, can be used by allergic constitution patients, more convenience is brought for the patients to inject medicine by themselves, the epinephrine pen is exactly like a pen, can be put in a pocket or a wallet, and is convenient to carry, injection is rapid and convenient, the epinephrine liquid medicine is stored in a refill, the refill and the pen body are connected, the specially-designed needles are ultrafine and ultrashort, needle points are sharp, needle tubes are smooth, no pain is generated in the injection process, the agent application amount is accurate, and production and use are promoted.