Closable male luer connector

1. A sealable male luer connector, comprising:

a tapering first tubular part for forming a seal with a corresponding part of a female luer connector, the first tubular part having an end region including a cross bar and through holes on either side of said cross bar;

a second tubular part disposed at least partially within said first tubular part, wherein said second tubular part is movable relative to said first tubular part from a first sealing position to a second non-sealing position, the second tubular part having an end region including a central groove and sealing faces on either side of said groove such that when said second tubular region is in said first sealing position, said cross bar is positioned within said groove and said sealing faces seal said through holes; and

actuating means for urging said second tubular part into said non-sealing position when said male luer connector is connected to said female luer connector.

2. The male luer connector according to claim 1 , wherein said actuating means includes at least one arm extending substantially parallel to a longitudinal axis of said second tubular part and affixed to said second tubular part, and wherein when said second tubular part is inserted at least partially into said first tubular part, said at least one arm extends externally of said first tubular part.

3. The male luer connector according to claim 2 , wherein said actuating means includes two arms and wherein when said male luer connector is attached to said female luer connector, said arms are pushed in a longitudinally axial direction by said female luer connector.

4. The male luer connector according to claim 3 , further including biasing means for urging said second tubular part toward said first sealing position.

5. A sealable male luer connector, comprising:

a tapering first tubular part for forming a seal with a corresponding part of a female luer connector;

a second tubular part disposed at least partially within said first tubular part, wherein said second tubular part is movable relative to said first tubular part from a first sealing position to a second non-sealing position;

actuating means for urging said second tubular part into said non-sealing position when said male luer connector is connected to said female luer connector, said actuating means including an outer rotatable lock ring having an internal screw thread in combination with a corresponding screw thread on an outer surface of said second tubular part such that rotation of said lock ring in a first direction causes said second tubular part to move from said first sealing position to said open position and rotation thereof in a second direction, opposite to said first direction, causes said second tubular part to move from said open position to said sealing position.

6. The male luer connector according to claim 5 , wherein said second tubular part comprises a filter, said filter being air permeable and water non-permeable.

7. A male luer connector attached to a first tube and connectable to a female luer connector for providing a flow channel between said first tube and a second tube attached to said female luer connector, said male luer connector comprising:

a tube member having openings for providing said flow channel; and

a male luer part including:

a tapered outer peripheral wall tapering toward a tip end for providing a seal with a tapered inner peripheral wall of said female luer connector,

a side wall having an inner wall forming an inner space, an outlet opening formed at a smaller diameter surface of the side wall,

a column connected to the smaller diameter surface, said column dividing the outlet opening, and

a tube member sealing arrangement formed at the outlet opening or the inner wall for providing a liquid tight seal with the tube member as the tube member is moved toward the outlet opening.