A luer connection device is disclosed having a housing including a side wall having an inside surface defining a lumen with a central axis, a proximal end, and a distal end including a male luer tip having a central flow diverter extending outwardly from the central axis of the lumen to direct a fluid to a circumferential dead space distal to the male luer tip. A luer connection device is also disclosed having a flow expansion channel disposed in the lumen tapering outward from the wall of tubular housing and partially extending along a longitudinal axis from the tip opening toward the base opening for increasing mixing and flow through a circumferential dead space in the fluid path distal to the male luer tip.