Medical connector

A medical connector having a substantially cylindrical shape and having a first upper end for receiving a male leer and a second lower end, said medical connector comprising:

• a disc shaped valve member arranged at the first upper end of said medical connector, the disc shaped valve member having an uppermost surface and a lowermost surface, a slit formed at a center portion thereof, an upper groove formed in a circumferential edge portion of the uppermost surface, and a lower groove formed in a circumferential edge portion of the lowermost surface;
• a housing with a substantially cylindrical shape having a pedestal for supporting the disc shaped valve member;
• a protrusion projecting upwardly from the pedestal, and being arranged in the lower groove of the disc shaped valve member such that the protrusion is disposed between a radially center portion and a radially outer rim portion of the disc shaped valve member in a lower side of the disc shaped valve member;
• and
• an annular ring member which is disposed on the circumferential edge portion of the uppermost surface of the valve member other than the center portion thereof, and having a claw portion integrally formed at a radially inner portion thereof so as to project downwardly, the claw portion being arranged in the upper groove formed on the circumferential edge portion of the uppermost surface of the valve member such that the claw portion is disposed between the radially center portion and the radially outer rim portion of the disc shaped valve member in an upper side of the disk shaped valve member;
• wherein the valve member is fixed to the housing by joining of the annular ring member and the housing to each other.