| 摘要 |
PROBLEM TO BE SOLVED: To provide a drug delivery device that includes mechanism having means for supporting reset of the mechanism.SOLUTION: Mechanisms 11, 12, 13, 14 in a main body 4 are used to drive a piston rod 8, and includes means 13, 14 for guiding movement of the piston rod to the main body. Further means 15 is provided to release the piston rod from the means for guiding the movement. Therefore, after the piston rod, especially a receptacle becomes empty and then is refilled, reset to a starting position is enabled. A device is configured in a manner in which the reset of the piston rod is supported. |
