Needle assembly and components thereof

1. A needle assembly comprising:

a housing comprising a wall having an interior wall surface defining a cavity having a tip protector disposed therein;

a needle, which has a shaft, a sharpened needle tip, and a crimp, a material build up, a bend or combinations thereof, passing through the housing and the tip protector;

the tip protector comprising a first protector body comprising two spaced apart arms each comprising a free end with a gap between the two free ends; the first protector body further comprising a proximal wall with an opening located inside an interior cavity of a second protector body, which has a body comprising at least two edges and an arm comprising a projection that is movable relative to the at least two edges;

wherein the crimp, the material build up, the bend or the combinations thereof on the needle is configured to engage the opening on the proximal wall in a protective position; and

wherein the arm with the projection on the second protector body and the first protector body are located along a same axial position of the shaft of the needle; and

wherein the second protector body comprises two proximal walls having an elongated non-circular opening therebetween.

2. The needle assembly of claim 1 , wherein the proximal wall of the first protector body is located between the two spaced apart arms, at an end opposite the two free ends.

3. The needle assembly of claims 1 , wherein the at least two edges are located along an axial position of the shaft and the interior cavity of the second protector where the first protector body is locate and adjacent the arm on the second protector body.

4. The needle assembly of claim 1 , wherein the arm of the second protector body defines at least part of the interior cavity having the first protector body located therein.

5. The needle assembly of claim 1 , wherein the housing is a catheter hub.

6. The needle assembly of claim 1 , wherein the two arms on the first protector body each comprises a non-uniform arm width.

7. The needle assembly of claim 1 , wherein the first protector body has a distal end edge and the second protector body has a distal end edge and wherein the needle tip moves proximally of the distal end edge of the first protector body and the distal edge of the second protector body in the protective position.

8. The needle assembly of claim 1 , wherein the at least two edges are located adjacent side wall sections on the body of the second protector body that enclose the first protector body.

9. The needle assembly of claim 1 , wherein the arm comprising the projection on the second protector body has a free end that points in an opposite direction of the two free ends of the first protector body.

10. The needle assembly of claim 1 , wherein the two spaced apart arms of the first protector body and the arm of the second protector body have arm sections that overlap along an axial position of the shaft of the needle.

11. A needle assembly comprising:

a housing comprising a wall having an interior wall surface defining a cavity having a tip protector disposed therein;

a needle, which has a shaft, a sharpened needle tip, and a crimp, a material build up, a bend or combinations thereof, passing through the housing and the tip protector; wherein the tip protector comprises:

a first protector body comprising two spaced apart arms each with an independently movable distal end edge and an opening on a proximal wall for engaging the crimp, the material build up, the bend or the combinations thereof;

a second protector body comprising a distal opening, a body comprising at least two edges and an arm comprising a projection that is movable relative to the at least two edges and defining at least in part an interior cavity having the first protector body disposed therein, and an opening on the body; and

wherein the second protector body comprises a proximal wall comprising at least two end walls having an elongated non-circular opening therebetween, said elongated non-circular opening on the proximal wall of the second protector body disposed proximally of the opening on the first protector body.

12. The needle assembly of claim 11 , further comprising a second opening located opposite the opening on the body of the second protector body.

13. The needle assembly of claim 11 , wherein the arm of the second protector body comprises a distal end and a proximal end and wherein the distal end of the arm is directly attached to the second protector body and the arm extends in a proximal direction and having a free end.

14. The needle assembly of claim 13 , wherein the first protector body has a distal end edge and the second protector body has a distal end edge and wherein the sharpened needle tip moves proximally of the distal end edge of the first protector body and the distal edge of the second protector body in the protective position.

15. The needle assembly of claim 11 , wherein the proximal wall of the first protector body prohibits the needle from moving proximally of the tip protector in the used position.

16. The needle assembly of claim 11 , wherein the needle is prevented from moving distally of the two arms of the first protector body in a used position.

17. The needle assembly of claim 11 , wherein the first protector body has a distal end edge and the second protector body has a distal end edge and wherein the sharpened needle tip moves proximally of the distal end edge of the first protector body and the distal edge of the second protector body in the protective position.

18. The needle assembly of claim 11 , wherein the at least two edges are located adjacent side wall sections on the body of the second protector body that enclose the first protector body.

19. A needle assembly comprising:

a housing comprising a wall having an interior wall surface defining a cavity having a tip protector disposed therein;

a needle, which has a shaft, a sharpened needle tip, and a crimp, a material build up, a bend or combinations thereof, passing through the housing and the tip protector;

the tip protector comprising a first protector body comprising two spaced apart arms extending generally orthogonally of a proximal wall with an opening located between the two spaced apart arms, and a distal end edge, said first protector body located inside an interior cavity of a second protector body, which has a body comprising a distal end edge, at least two edges, and an arm comprising a projection that is movable relative to the at least two edges;

wherein the crimp, the material build up, the bend or the combinations thereof on the needle is configured to engage the opening on the proximal wall and the sharpened needle tip moves proximally of the distal end edge of the first protector body and the distal edge of the second protector body in a protective position; and

wherein a proximal wall of the second protector body comprises at least two end walls with an elongated non-circular gap therebetween located proximally of the proximal wall of the first protector body.

20. The needle assembly of claim 19 , further comprising a catheter tube attached to the housing.

21. The needle assembly of claim 19 , wherein the two spaced apart arms of the first protector body and the arm of the second protector body have arm sections that overlap along an axial position of the shaft of the needle.

22. The needle assembly of claim 19 , wherein the arm of the second protector body comprises a distal end and a proximal end and wherein the distal end of the arm is directly attached to the second protector body and the arm extends in a proximal direction.

23. The needle assembly of claim 19 , wherein the arm with the projection of the second protector body is located along an axial position of the shaft and along the interior cavity of the second body where the first protector body is located.

24. The needle assembly of claim 19 , wherein the arm on the second body defines at least part of the interior cavity having the first protector located therein.