| 摘要 |
A first connector (2) is provided with: a first connector body composed of a cylindrical outer tube (4), a cylindrical inner tube, and a hub (12); a hollow needle (5) supported by the hub (12); a first sealing member supported by the inner tube; a coiled spring (8) serving as a pressing means which presses the hub (12) in the direction toward the base end and also serving as a means which presses a section to be pierced, said means pressing the first sealing member in the direction toward the front end; and a gripping and pressing member disposed on the outer tube (4). Claws (126) are formed on a flange (124) of the hub (12). Ratchet teeth (41) are formed on the inner periphery of the base end of the outer tube (4). Each of the ratchet teeth (41) and each of the claws (126) of the hub (12) form an engagement-disengagement mechanism (13). |
