Safety needle container

• US 4,982,842 A
• Filed: 06/04/1990
• Issued: 01/08/1991
• Est. Priority Date: 06/04/1990
• Status: Expired due to Term

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Concord/Portex
• Inventors: Hollister, William H.
• Primary Examiner(s): PRICE, WILLIAM
• Application Number:
  US07/532,558
• Time in Patent Office: 218 Days
• Field of Search: 206/365, 604/192, 604/198, 604/263
• US Class Current: 206/365
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Abstract

A universal safety adapter which is usable with different types of needles and syringes has integral first and second sections and a housing flexibly connected to one of the sections. In the case of the first section being adaptable to be mated with the hub of a needle assembly, the housing is flexibly connected thereto by way of a living hinge. The needle assembly is threadedly mated with an internally threaded annular collar surrounding a protrusion which is to be coupled to the hub of the needle assembly. The second section of the safety adapter, in a first embodiment, includes a female luer that is adaptable to be mated with different types of syringes, such as a luer slip syringe or a luer lock syringe. Once the needle assembly has been threadedly mated to the first section of the safety adapter, to ensure that the cannula of the needle assembly is not exposed so as to preclude accidental pricking by the needle, the housing is pivoted to a position whereby it completely envelops the cannula. At least one integral retainer mechanism in the housing prevents relative movement between the cannula and the housing once the housing has been pivoted to envelop the cannula. The dead space volume at the junction where the needle is connected to the syringe can be substantially reduced by a second embodiment of the safety adapter of the present invention which includes a male extension within the female luer.

Claims

1. A safety device to be used with a needle having a hub, comprising:

a base having

a first section including a protrusion and securing means surrounding said protrusion for effecting mating of said protrusion to said hub of said needle;

a second section integrated to said first section extending away from said securing means and having means for mating with an ejection end of a syringe; and

a housing flexibly connected to said base and pivotable toward a position in substantial alignment along the longitudinal axis of said needle for enveloping said needle, said housing further having integral locking means for fixedly retaining said needle within said housing once said housing has been pivoted to said position.

2. Safety device of claim 1, wherein said securing means comprises an annular collar having at its inner circumference threads for accepting said hub of said needle.

3. Safety device of claim 1, wherein said mating means of said second section comprises a bore extending substantially throughout said second section for slip-fittedly mating with said ejection end of said syringe.

4. Safety device of claim 1, wherein said mating means of said second section comprises means at the distal end of said second section for threadedly mating with an internally threaded collar surrounding said ejection end of said syringe.

5. Safety device of claim 1, wherein said housing comprises an elongated slot through which said needle passes when said housing is pivoted to said position.

6. Safety device of claim 1, wherein said locking means comprises a hooking means integral of said housing for securely retaining said needle within said housing.

7. Safety device of claim 1, wherein said locking means comprises a plurality of hooking means integrated into said housing for securely retaining said needle within said housing

8. Safety device of claim 1, wherein said housing is flexibly coupled to said base by a living hinge.

9. Safety device of claim 1, further comprising a substantially rigid shoulder extending from said base and to which said housing is flexibly connected

10. Safety device of claim 1, further comprising an internal bore taperedly extending throughout said protrusion and said second section to provide a direct passage for fluid transiting between said ejection end of said syringe and said needle hub.

11. Safety device of claim 1, wherein said protrusion of said first section has a through bore substantially the size of the bore of said needle;

and

wherein said second section has a conical extension projecting away from said protrusion having a through bore substantially matching the size of the through bore of said protrusion, the respective through bores of said protrusion and said conical extension effecting one continuous through bore in said base; and

wherein said conical extension is inserted into said ejection end of said syringe when said second section is mated to said ejection end for substantially reducing the volume of space through which fluid transits between said syringe and said needle.

12. A safety device to be used with a needle, comprising

a base having a first end for mating with said needle and a second end for mating with a syringe;

and

a housing flexibly connected to said first end and pivotable toward a position in substantial alignment along the longitudinal length of said needle for enveloping said needle, said housing further having integral locking means for fixedly retaining said needle within said housing once said housing has been pivoted to said position.

13. Safety device of claim 12, wherein said first end comprises a male luer for mating with a hub of said needle;

and

wherein said first end further comprises an internally threaded annular collar surrounding said male luer for threading said needle hub thereto, thereby detachably coupling said needle to said first end.

14. Safety device of claim 12, wherein said second end comprises a female luer for slip-fittedly mating with an ejection end of said syringe.

15. Safety device of claim 12, wherein said second end comprises a luer locking hub for threadedly mating with an internally threaded collar surrounding an ejection end of said syringe.

16. Safety device of claim 12, wherein said locking means comprises a substantially rigid hook means integral of said housing for securely retaining said needle within said housing.

17. Safety device of claim 12, wherein said locking means comprises a plurality of hooking means integral of said housing for securely retaining said needle within said housing.

18. Safety device of claim 12, wherein said housing comprises an elongated slot through which said needle passes

when said

housing is pivoted to said position.

19. Safety device of claim 12, wherein said base comprises a male luer at said first end for mating to a hub of said needle;

wherein said base further comprises a snout extending to said second end, a bore having a diameter substantially the size of that of the bore of said needle extending through said male luer and said snout;

wherein, when said snout is inserted into an ejection end of said syringe, the fluid directly transits between said syringe and said needle through said bore extending through said male luer and said snout.

20. A safety device for a needle, comprising:

a base having

a first section for coupling to a needle having a hub including a male projection for insertion into said hub of said needle, and an internally threaded annular collar surrounding said male projection for detachably coupling said needle via said hub;

a second section integrally extending away from said first section including a female receptacle for accepting an ejection end of a syringe; and

a housing flexibly connected to said first section of said base and pivotable to a position in substantial alignment along the longitudinal axis of said needle for enveloping said needle, said housing further having integral locking means for preventing relative movement between said needle and said housing once said housing has been pivoted to said position.

21. Safety device of claim 20, further comprising:

a snout integrated to said second section axially positioned within said female receptacle and extending to the distal end of said second section for insertion into said ejection end of said syringe;

a through bore having a diameter substantially the size of that of the bore of said needle extending through said male projection and said snout;

wherein, when said snout is inserted into said ejection end of said syringe, fluid transiting between said syringe and said needle only passes through said through bore for substantially reducing the volume of space through which said fluid needs to transit.

22. Safety device of claim 20, wherein said housing comprises an elongated slot through which said needle passes when said housing is pivoted to said position.

23. Safety device of claim 20, wherein said locking means comprises a hooking means integral of said housing for securely retaining said needle within said housing.

24. Safety device of claim 20, wherein said locking means comprises a plurality of hooking means integrated into said housing for securely retaining said needle within said housing.

25. Safety device of claim 21, wherein said housing comprises an elongated slot through which said needle passes when said housing is pivoted to said position.

26. Safety device of claim 21, wherein said locking means comprises a hooking means integral of said housing for securely retaining said needle within said housing.

27. Safety device of claim 21, wherein said locking means comprises a plurality of hooking means integrated into said housing for securely retaining said needle within said housing.