| 摘要 |
<p>A prefilled syringe includes: a syringe barrel including a syringe barrel body and an outer barrel; a cap; a gasket; and a plunger which allows the gasket to slide by pressing a press portion located on the base end of a shaft to discharge a drug solution inside the syringe barrel body, wherein the outer barrel has a window and a mask which hides the inside of the outer barrel on a wall thereof, one part of the shaft has a mark which has a color different from the color of the other part of the plunger, and the mark is covered with the mask and cannot be visually recognized through the window before discharge of the drug solution, and the outer peripheral surface of the mark can be visually recognized through the window along with movement of the plunger when the discharge of the drug solution is completed.</p> |
