Patent ID: 7614426

Claim:
A cap for a connector detachably attached to a male luer connector, in which said cap for the connector comprises: a cap body including a cylindrical fitting part being capable of liquid tightly fitting with the tip end opening portion of said male luer connector and a cylindrical guide backwardly extended from the basal end of said cylindrical fitting part and provided with a liquid outlet on its peripheral surface; a sliding part having a cylindrical gas flow path forming part movable in the axial direction of said cylindrical guide within said cylindrical guide, in which said gas flow path forming part occludes said liquid outlet as moved toward said cylindrical fitting part and close said liquid outlet as moved toward the opposite side of said cylindrical fitting part; and an air filter provided to said gas flow path forming part, said air filter blocking the tip end opening of said male luer connector, said air filter passing through no liquid but a gas from a flow path of said male luer connector into said gas flow path forming part when said gas flow path forming part is moved toward said cylindrical fitting part.