ASSEMBLY FOR SYRINGE, ASSEMBLY METHOD AND ASSEMBLY DEVICE FOR ASSEMBLING ASSEMBLY FOR SYRINGE, PRE-FILLED SYRINGE USING ASSEMBLY FOR SYRINGE, AND METHOD FOR ASSEMBLING PRE-FILLED SYRINGE

摘要

A method for assembling an assembly for a syringe that includes a cylindrical outer barrel; a puncture needle; and a cylindrical cap. The method includes forming a closed space in a receiving hole of the cap by inserting the puncture needle and a barrel tip at least partially into the receiving hole before a tip end of the puncture needle is inserted into a bottom wall of the cap; discharging gas in the closed space; and sealing a tip end of the needle hole by further inserting the barrel tip into the receiving hole to insert the tip end of the puncture needle into the bottom wall.

主权项

1. A method for assembling an assembly for a syringe, the assembly for a syringe including a cylindrical outer barrel having a barrel tip at its tip end and an opening at its base end; a puncture needle held at the barrel tip and having a needle hole communicating with an inner space of the outer barrel; and a cylindrical cap having a receiving hole, which is formed in the direction in which the puncture needle extends and has a bottom wall at its tip end, the cap storing the puncture needle in the receiving hole and being detachably mounted to the barrel tip so as to seal a tip end of the needle hole, the method comprising:
forming a closed space in the receiving hole by inserting the puncture needle and the barrel tip at least partially into the receiving hole before a tip end of the puncture needle is inserted into the bottom wall; discharging gas in the closed space through the needle hole, the inner space, and the opening; and sealing the tip end of the needle hole by further inserting the barrel tip into the receiving hole to insert the tip end of the puncture needle into the bottom wall.