| 摘要 |
A syringe comprises: a drug storage (10) having a first space (101) for storing a drug; a unidirectional switch (20) having a second space (201) in fluid communication with the first space (101); and an injection cavity (30) having a third space (301) in fluid communication with the second space (201), wherein a plunger (40) is disposed in the third space (301), and is capable of moving along the injection cavity (30), so as to pump the drug stored in the first space (101) to the third space (301). The drug storage (10) comprises a bottom base (102) and a top cover (103), and at least one of the bottom base (102) and the top cover (103) is formed by a flexible film to form the first space (101) for storing the drug. |
