Swivel hub

1. A medical connector, comprising:

a core having at least one aperture opening to a center cavity in the core;

a first interface mechanically coupled to the core and fluidly coupled with the center cavity in the core;

a hub comprising:

a hollow stem positioned at an angle relative to the first interface,

a second interface located at a proximal end of the hollow stem, and

a sleeve located at a distal end of the hollow stem surrounding the core and forming a fluid pathway for transferring a fluid through the second interface, the hollow stem, the hub, the at least one aperture in the core, and the first interface,

wherein the hub is selectively rotatable relative to the core and the first interface; and

a retaining ring to maintain the position of the sleeve relative to the core, the retaining ring comprising at least one sloped surface configured to slidably engage the core during assembly of the medical connector,

wherein the sleeve comprises a single cylindrical interior surface extending from a first end of the sleeve to a second end of the sleeve,

wherein the first interface comprises female threads,

wherein at least a portion of the retaining ring radially overlaps the female threads,

wherein the sloped surface of the retaining ring is disposed within an annular groove of the core, and

wherein the annular groove is disposed radially outward of the female threads.

2. The medical connector of claim 1 , further comprising two O-rings to fluidly seal the sleeve to the core.

3. The medical connector of claim 1 , further comprising a gripping surface mechanically coupled to the core and the first interface for rotating the core and the first interface.

4. The medical connector of claim 3 , wherein the gripping surface comprises a plurality of grip tabs.

5. The medical connector of claim 1 , wherein the sleeve is a hollow cylinder and the core is a cylindrical shape and disposed in the sleeve.

6. The medical connector of claim 5 , wherein the sleeve and core are sized and positioned to create an annular space between a portion of the sleeve and the core.

7. The medical connector of claim 1 , wherein the core has a plurality of apertures.

8. The medical connector of claim 1 , wherein the first interface is a different type than the second interface.

9. The medical connector of claim 1 , wherein the retaining ring is disposed between the sleeve and the first interface.

10. The medical connector of claim 1 , wherein the retaining ring is integral with the sleeve.

11. The medical connector of claim 1 , wherein the core comprises a tapered external surface extending proximally from a distal end of the core and

wherein the tapered external surface is disposed radially outward of the female threads.

12. The medical connector of claim 11 , wherein the sloped surface of the retaining ring is configured to slidably engage the tapered external surface during assembly of the medical connector.

13. An adapter for a medical device, comprising:

a hub including a stem and a barrel, the barrel forming an open chamber, and the stem having a first interface and a first fluid pathway forming a port through a lateral surface of the barrel connecting the first interface to the chamber;

a core having at least one aperture opening to a second fluid pathway disposed within the chamber,

wherein the hub is selectively rotatable relative to the core;

at least two seals to fluidly seal both ends of the barrel to the core;

a second interface coupled to a distal end of the core, the second interface in fluid communication with the second fluid pathway;

a gripping surface mechanically coupled to a proximal end of the core to rotate the core; and

a fastener to secure the barrel between the fastener and the gripping surface, wherein the fastener comprises a plurality of longitudinally disposed deflectable members,

wherein the second interface comprises female threads,

wherein a maximum outside diameter of the second interface is less than a minimum inside diameter of the barrel, and

wherein the female threads are fixedly coupled to the core such that the female threads rotate with the core.

14. The medical adapter of claim 13 , wherein the barrel and core are sized and positioned to create an annular space between a portion of the sleeve and the core.

15. The medical adapter of claim 13 , wherein the fastener is a snap-fit retaining ring.

16. The medical adapter of claim 13 , wherein the gripping surface comprises a plurality of grip tabs.

17. The medical adapter of claim 13 , wherein the deflectable members deflect in a radial direction during assembly of the medical adapter.

18. The medical connector of claim 13 , wherein at least a portion of the fastener radially overlaps the female threads.

19. The medical connector of claim 13 , wherein the core comprises a tapered surface disposed radially outward of the female threads, and

wherein the plurality of longitudinally deflectable members are configured to engage the tapered surface during assembly of the medical connector.