Male luer connector

A male luer connector for communicating one tube member with the other tube member by coupling with one tube member and a female luer connector to which the other tube member is connected, in which the male luer connector comprises:

• a male luer connector body including a basal end connecting part coupled with the one tube member at the rear part thereof and a cylindrical tip end support part forwardly extended from the front part of the basal end connecting part and being capable of displacing relative to the basal end connecting part while the boundary between the basal end connecting part and the tip end support part is liquid tightly sealed;
• a male luer part having a generally cylindrical shape and comprising a tip end side portion including an outer peripheral surface provided within the tip end support part so as to slidably moved within it in the axial direction in the condition where the tip end side portion is protruded from the tip end of the tip end support part and the outer peripheral surface of the tip end side portion is tapered from the rear side to the tip end side, whereby the male luer part is capable of being liquid tightly contacted with the tapered inner peripheral surface;
• a male luer occluding part provided in the insides of the male luer connector and the male luer part which can liquid tightly occlude the tip end opening of the male luer part at the tip end thereof;
• and
• a displacement mechanism for forwardly and backwardly moving the tip end of the male luer occluding part relative to the tip end opening of the male luer part by moving the male luer occluding part relative to the male luer part in the axial direction by using the displacement of the tip end support relative to the basal end connecting part.