| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a prefilled syringe which has a simple constitution and secures the locking of a plunger rod certainly. <P>SOLUTION: In the prefilled syringe constituted so that gaskets 3 and 4 and plunger rod 2 are movably inserted in a container main body 1 prefilled with a medicine and the initial position of the movement of the plunger rod 2 and/or the position on the way of the movement thereof is regulated by a lock mechanism, the lock mechanism is constituted by mounting a locking piece 10 on the eccentric shaft 9 formed to the plugner rod 2 in a freely revolvable manner and the maximum outer peripheral edge in the radial direction from the center of revolution of the locking piece 10 is set so that the relative position of the locking piece 10 is displaced to the inside and the outside with respect to the inner diameter of the container main body 1 per one rotation of the locking piece. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
