Drug delivery connectors

A device comprising:

• a syringe barrel comprising a distal end, an open proximal end and a sidewall extending between the distal end to the open proximal end, the sidewall including an inside surface that defines a chamber for retaining fluids, the distal end including a distal wall having an elongate tip that extends in a distal direction from the distal wall, the elongate tip sized and shaped for connection to a compatible female neuraxial connector, the elongate tip comprising an opening providing access to the chamber and an outside surface having a taper of less than 6% extending in the distal direction;
• and
• a collar disposed coaxially around the elongate tip and forming a channel between the elongate tip and the collar sized to receive a portion of the compatible female neuraxial connector, the collar including a plurality of longitudinal ribs extending outwardly from an outside surface of the collar, the plurality of longitudinal ribs defining an outside diameter that prevents a non-compatible female standard luer connector from sliding over the outside surface of the collar and preventing entry of the non-compatible female standard luer connector into the channel and connection to the elongate tip.