Luer connector, medical connector and transfer set comprising such a connector

A luer connector having an internal conduit (11) for a fluid to pass, comprising:

• an internal conduit (11) for fluid to pass;
• means (8) of connecting to a second luer connector (16), said second luer connector having a perforator (21), said connection means being placed at one end of said conduit (11),
• said one end also comprising a continuous rim (24) forming a projection in said conduit (11) so as to provide a seal on said conduit when said perforator is introduced into said conduit (11) with a view to coupling said connectors (7, 16), and
• an impervious breakable membrane (10) placed in said conduit (11) so as to be separated when said second luer connector (16) is coupled to said luer connector (7),
• wherein said membrane (10) comprises one or more predetermined weakened areas (12) on said membrane facilitating separation of a piece of the membrane from a remainder of the membrane,
• wherein said membrane comprises a reinforcement zone secured to said internal conduit, the reinforcement zone securing the piece of the membrane to the internal conduit upon the piece of the membrane being separated from the remainder of the membrane, and
• wherein said internal conduit (11) comprises a recess to accommodate the piece of the membrane separated from the remainder of the membrane.