| 摘要 |
PROBLEM TO BE SOLVED: To provide a syringe for which mounting completion of a plunger to a gasket can be confirmed and the gasket is not easily deformed even when the plunger is tilted. SOLUTION: The gasket 3 of the syringe 1 comprises a gasket body 6 and a member 7 for mounting the plunger, and the mounting member 7 includes a spiral rib 74 and a mounting member side slide engaging part 75 provided on a proximal end side flange part 78. The gasket body 6 includes a spiral screwing part 63 to be screwed with the spiral rib and a housing part 62 for housing a spiral rib formed part. The plunger 4 includes a plunger side slide engaging part 40 to be engaged with the slide engaging part 75. The slide engaging part 75 and the plunger side slide engaging part are engaged by sliding the distal end part of the plunger 4 laterally to a prefilled syringe body axial direction to the proximal end side flange part of the mounting member 7 and are provided with fitting mechanisms 42a and 76a to be fitted by the progress of the engagement of both. COPYRIGHT: (C)2011,JPO&INPIT |
