To provide a connector and a fluid bag assembly capable of easily and smoothly releasing connection between a second connection part of a connector and a second mouth part of a suction tool.SOLUTION: A connector of the present invention comprises a first connection part which is connected by screwing to a first mouth part of a fluid bag comprising a bag body for storing a fluid and a first mouth part from which the fluid is discharged, and a second connection part which is connected by screwing to a second mouth part of a suction tool having the second mouth part. The first connection part comprises: a first screwing part which has a tubular shape and rotates by 0.5 revolution or more and 5 revolutions or less until screwing of the screw part is completed. The second connection part comprises: a second screwing part which has a tubular shape and rotates by 0.5 revolution or more and 5 revolutions or less until screwing of the screw part is completed, and the connector has a maintaining part for maintaining a screwed state between the first connection part and the first mouth part.SELECTED DRAWING: Figure 2【課題】コネクタの第２接続部と吸引具の第２口部との接続の解除を容易かつ円滑に行うことができるコネクタおよび流体バッグ組立体を提供すること。【解決手段】本発明のコネクタは、流体を収納するバッグ本体と、前記流体が排出される第１口部とを有する流体バッグの前記第１口部と、螺合によって接続される第１接続部と、第２口部を有する吸引具の前記第２口部と、螺合によって接続される第２接続部とを備えるコネクタであって、前記第１接続部は、筒状をなし、ねじ部の螺合完了まで０．５回転以上５回転以下である第１螺合部を有し、前記第２接続部は、筒状をなし、ねじ部の螺合完了まで０．５回転以上５回転以下である第２螺合部を有しており、前記第１接続部と前記第１口部との螺合状態を維持する維持部を備える。【選択図】図２
