Abstract: A medical connector includes a body defining a lumen for fluid flow through the medical connector. The medical connector includes a luer member and an annular member disposed about the luer member. The annular member includes internal and/or external engagement structures. The medical connector may be provided on the outlet of a syringe or on a catheter. A fluid path is disclosed including a first section and a second section. The first and second sections may each include a medical connector to provide a removable connection with a syringe and a catheter, respectively. The medical connector may provide a removable connection between the first and second sections. A fluid delivery system is disclosed including an injector, a syringe operatively associated with the injector, and a fluid path connecting the syringe and a source of injection. The medical connector may provide a removable connection between the syringe and fluid path.

Abstract: A syringe adapter, which permits use of syringes of various types and sizes to be used with a front-loading injector, includes a piston extension and an adapter face plate. The piston extension includes structure for connecting the piston extension to a drive piston of the injector and a plunger of the syringe. The adapter face plate includes a mounting device for attaching the adapter face plate to an injector and a recess for receiving the distal flange of the syringe. The adapter face plate may also include locking pivot arms for releasably engaging the syringe flange.