Luer lock system

A medical connector, comprising:

• an elongate tubular body having a proximal and a distal end, and a central lumen extending axially therethrough, said proximal end adapted for receiving a flexible tubular conduit;
• a hub on the tubular body, movable between a distal position in which the hub is rotatable about the tubular body, an intermediate position in which the hub is rotationally locked with respect to the tubular body, and a proximal position in which the hub is displaced along the tubular conduit in a proximal direction from the tubular body;
• a first stop on the tubular body;
• and
• a complementary second stop on the hub,
• wherein said first and second tapered stops contact each other when the hub is in the distal position to prevent said first stop from advancing distally past said second stop,
• wherein said tubular body further comprises a radially outwardly extending projection and said hub further comprises an axially extending channel on the radially interior surface thereof, for receiving said projection, such that the hub is rotationally locked with respect to the tubular body when the projection is positioned within the channel, and wherein the hub remains axially movable with respect to the tubular body,
• wherein said projection comprises an axially extending spline,
• wherein said hub comprises at least two radially inwardly directed ribs surrounding said channel and said spline has a wide portion having a circumferential width substantially equal to the circumferential width of said channel between said ribs,
• wherein there is a first wide portion formed on the proximal end of said spline, and a second wide portion formed on the distal end of said spline, and said spline has a narrow central portion, and
• wherein said first and second wide portions extend in opposite circumferential directions from said narrow central portion to interfere with said ribs when said hub is moved axially along said tubular body.

A medical connector, comprising:

• an elongate tubular body having a proximal and a distal end, and a central lumen extending axially therethrough, said body comprising a proximal tubular section for attaching to a medical supply line, a distal tapered nose, and a shoulder disposed therebetween, said shoulder comprising an annular surface extending from said proximal tubular section, said surface inclined radially outwardly in the distal direction and terminating in a distally facing wall;
• a hub on the tubular body, movable between a distal position in which the hub is rotatable about the tubular body, and a proximal position in which the hub is rotationally locked with respect to the tubular body, and said hub comprises ISO threads on the interior surface thereof, for engaging a complementary luer connector;
• and
• a protective cap to protect said nose defined by a closed-ended tubular body having a proximal engagement tube portion with an interior wall tapered at approximately the same angle as the tapered nose, said engagement tube portion includes a series of outwardly directed ribs provided to frictionally engage the inwardly directed threads on the hub,
• wherein said cap includes a plurality of projections formed on a proximal end of said engagement tube portion which contact said wall to create a gap between the protector cap and the tubular body for ease of priming the device when the cap is in place, the gap presenting a tortuous path for bacteria after sterilization.