Disposable pen needle with re-use prevention features

1. A needle assembly, comprising:

a hub;

a needle fixedly connected to said hub;

an outer cover for removably receiving said hub and said needle;

a cap movably connected to said outer cover for covering said needle before and after use, said cap having a recess; and

a locking member tab movably connected to said cap for locking said hub and said needle in said outer cover, said locking member tab being receivable by said recess to prevent movement of said cap.

2. The needle assembly according to claim 1 , wherein

said hub comprises a colored portion to indicate use.

3. The needle assembly according to claim 1 , wherein

said locking tab is movable between a first position and a second position, when said tab is in said first position said cap is movable with respect to said outer cover, and when said tab is in said second position said cap is locked to said outer cover by said tab.

4. The needle assembly according to claim 3 , wherein

said recess receives said tab in said second position.

5. The needle assembly according to claim 1 , wherein

a living hinge provides said movable connection between said cap and said outer cover.

6. The needle assembly according to claim 5 , wherein

said cap fits within said outer cover.

7. The needle assembly according to claim 1 , wherein

a circumferentially extending flexible finger is disposed on an inner surface of said outer cover.

8. The needle assembly according to claim 7 , wherein

said hub is disposed on a first side of said flexible finger for access by a user, and said hub is disposed on a second side of said flexible finger to lock said hub in said outer cover.

9. The needle assembly according to claim 8 , wherein

an inner shield is disposed on said hub to prevent moving said hub to said second side of said flexible finger.

10. A needle assembly, comprising:

a hub;

a needle fixedly connected to said hub;

an outer cover for removably receiving said hub and said needle, said outer cover covering a first end of said needle; and

an inner shield adapted to be connected to said hub in a first position for covering a second end of said needle and in a second position for covering said first end of said needle.

11. The needle assembly according to claim 10 , wherein

said inner shield is threadably connected to said hub.

12. The needle assembly according to claim 10 , wherein

flexible arms connected to said hub prevent removal of said inner shield from said hub.

13. The needle assembly according to claim 12 , wherein

said inner shield has a stepped base for engaging said flexible arms.

14. A method of preventing reuse of a needle of a needle assembly for use with a drug delivery device, comprising the steps of:

moving a cap movably connected to an outer cover to expose a needle assembly for use;

inserting a used needle assembly in the outer cover to cover a first end of the needle assembly;

covering a second end of the needle assembly with the cap; and

moving a tab connected to said cap into a recess in said cap to lock the needle assembly in the outer cover to prevent reuse.

15. The method of preventing reuse according to claim 14 , further comprising

connecting a hub of the needle assembly to the outer cover.

16. A needle assembly, comprising:

a hub;

a needle fixedly connected to said hub;

an outer cover for removably receiving said hub and said needle;

a cap movably connected to said outer cover, said cap having a recess; and

a tab connected to said cap and movable relative to said cap between a first position and a second position, said cap being movable with respect to said outer cover by said tab in said first position and said tab being disposed in said recess in said cap in said second position to prevent a user from moving said cap.

17. The needle assembly according to claim 16 , wherein

a living hinge provides said movable connection between said cap and said outer cover.

18. The needle assembly according to claim 16 , wherein

said cap fits within said outer cover.