Safety needle container

• US 5,232,454 A
• Filed: 08/01/1990
• Issued: 08/03/1993
• Est. Priority Date: 08/01/1990
• Status: Expired due to Term

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Industries Medical Systems Incorporated
• Inventors: Hollister, William H.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): STRIGHT, RONALD K
• Application Number:
  US07/561,459
• Time in Patent Office: 1,098 Days
• Field of Search: 604/110, 604/162, 604/167, 604/192, 604/198, 604/263
• US Class Current: 604/192
• CPC Class Codes: A61M 2005/3109 Caps sealing the needle bore by use of, e.g. air-hardening adhesive, elastomer or epoxy resin
• 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 usable with different types of needles and syringes has integral first and second portions and a housing, including an integral compressible section connecting a main body section to an end cap section, flexibly connected to one of the portions. In the case of the first portion being mated to the hub of a needle assembly, the housing is flexibly connected thereto by a living hinge. Once the needle assembly has been mated to the first portion of the safety adapter, to preclude accidental pricking by the needle after use, the housing is pivoted to a position whereby it completely envelops the cannula. To provide additional protection, the end cap section, which has adapted thereto an elastomer, may be urged longitudinally toward the main body section so that the tip of the contaminated needle is completely encased by the elastomer as the compressible section collapses under pressure. 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. Safety device to be used with a needle, comprising:

a base for connecting said needle to a syringe;

a housing having a first selection flexibly coupled to said base, a second section longitudinally in alignment with said baseand a compressible section sandwiched between and integrally connecting said first and second sections, said housing pivotable about said base toward a position in substantial alignment along the longitudinal axis of said needle for enveloping said needle; and

means adapted to said second section to substantially sealingly secure the tip of said needle when said second section is urged toward said first section.

2. Safety device of claim 1, wherein said sealingly secure means comprises an elastomeric material for firmly gripping the tip of said needle after said elastomeric material has been urged against said needle and penetrated thereby. gripping the tip of said needle after said elastomeric material has been urged against said needle and penetrated thereby.

3. 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, said elongated slot extending at least from said first section to said compressible section.

4. Safety device of claim 1, wherein said compressible section comprises a semi-enclosed extension fixedly connecting said first section to said second section, said extension collapsible when said second section is urged toward said first section to enable the tip of said needle to penetrate said sealingly secure means and be firmly gripped thereby.

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

6. Safety device of claim 1, further comprising:

means in said housing for retaining said needle within said housing once said housing has been pivoted to said position.

7. Safety device of claim 6, wherein said sealingly secure means comprises an elastomeric material for firmly gripping the tip of said needle after said elastomeric material has been urged against said needle and penetrated thereby.

8. Safety device of claim 6, wherein said retaining means comprises a hooking means integral of said housing for securely confining said needle within said housing to prevent relative movement between said needle and said housing.

9. Safety device of claim 6, wherein said retaining means comprises a plurality of hooking means integrated to said housing for securely confining said needle within said housing to prevent relative movement between said needle and said housing.

10. Safety device of claim 6, wherein said retaining means comprises at least one forked means for frictionally holding said needle within said housing.

11. Safety device of claim 1, wherein said needle is integrated to a hub and wherein said base comprises:

a first portion including a protrusion and securing means substantially surrounding said protrusion for providing secured mating of said protrusion to said hub of said needle;

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

12. Safety device of claim 11, wherein said securing means comprises an annular collar having at its inner circumference threads for accepting said hub of said needle.

13. Safety device of claim 11, wherein said mating means of said second portion comprises a bore extending substantially throughout said second portion for slip-fittedly mating with said ejection end of said syringe.

14. Safety device of claim 11, wherein said mating means of said second portion comprises means at the distal end of said second portion for threadedly mating with an internally threaded collar surrounding said ejection end of said syringe.

15. Safety device of claim 11, further comprising:

an internal bore taperedly extending throughout said protrusion and said second portion to provide a direct passage for fluid transiting between said ejection end of said syringe and said needle hub.

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

and

wherein said second portion 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 portion is mated to said ejection end for substantially reducing the volume of space through which fluid transits between said syringe and said needle.

17. Safety device to be used with a needle, comprising:

a base having integral first and second portions for coupling said needle to a syringe;

housing means having a main section one end of which being flexibly connected to said first portion of said base, an end section and a compressible section sandwiched between said main and end sections, said housing means pivotable about said first portion of said base to an operative position to substantially align along the longitudinal axis of said needle for enveloping the same;

means adapted to said end section of said housing means to sealingly secure the tip of said needle after said needle has been enveloped by said housing means and said end section has been urged toward said base such that said compressible section collapses longitudinally along the length of the needle.

18. Safety device of claim 17, wherein said sealingly secure means comprises an elastomeric material for firmly gripping the distal end of said needle including its tip as said end section is urged toward said base and said elastomeric material is penetrated by said needle.

19. Safety device of claim 17, wherein said first portion of said base comprises a male luer for mating with a hub of said needle;

and

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

20. Safety device of claim 17, wherein said second portion of said base comprises a female luer for slip-fittedly mating with an ejection end of said syringe.

21. Safety device of claim 17, wherein said second portion of said base comprises a luer locking hub for threadedly mating with an internally threaded collar surrounding an ejection end of said syringe.

22. Safety device of claim 17, wherein said housing means comprises an elongated slot extending at least along the length of said main section, said needle passing through said slot when said housing means is pivoted to said operative position.

23. Safety device of claim 17, wherein said base comprises a male luer at said first portion for mating to a hub of said needle;

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

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.

24. Safety device of claim 17, wherein said compressible section is made thinner than said main section such that, when said end section is urged toward said base, said compressible section collapses longitudinally along the length of said needle to thereby enable said means adapted to said end section to sealingly secure the tip of said needle.

25. Safety device of claim 17, wherein said compressible section comprises a semi-enclosed extension integrally connecting said main section to said end section of said housing, said extension foldable when said end section is urged toward said base to enable the tip of said needle to penetrate said sealingly secure means and be firmly gripped thereby.

26. Safety device of claim 17, further comprising:

means integrated in said housing means for substantially preventing said needle from moving relative to said housing means when said housing means has been pivoted to said operative position.

27. Safety device of claim 26, wherein said sealingly secure means comprises an elastomeric material for firmly gripping the distal end of said needle including its tip as said end section is urged toward said base and said elastomeric material is penetrated by said needle.

28. Safety device of claim 26, wherein said preventing means comprises a substantially rigid hook means integral of said housing.

29. Safety device of claim 26, wherein said preventing means comprises a plurality of hooking means integral of said housing.

30. Safety device of claim 26, wherein said preventing means comprises at least one forked means for frictionally holding said needle.

31. Safety device for a needle having a hub, comprising:

a base having

a first portion 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 to said base via said hub;

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

a housing pivotable to a position in substantial alignment along the longitudinal axis of said needle for enveloping said needle, said housing having

a main body one end of which being flexibly connected to said first portion of said base to provide pivoting thereabout;

an end cap;

a compressible extension sandwiched between said main body and said end cap, and integrally connecting the other end of said main body to said end cap; and

means within said main body for confining said needle within said housing once said housing has been pivoted to said position.

32. Safety device of claim 31, further comprising:

grip means adapted to said end cap to securely grip the tip of said needle after said housing has been pivoted to said position to envelop said needle and a force being applied against said end cap to compress said compressible extension to force the tip of said needle to penetrate said grip means.

33. Safety device of claim 31, further comprising:

a snout integrated to said second portion 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.

34. Safety device of claim 31, wherein said housing comprises an elongated slot extending at least along the length of said main body, said needle passing through said slot when said housing is pivoted to said position.

35. Safety device of claim 31, wherein said confining means comprises a hooking means integral of said main body of said housing for retaining said needle within said housing to prevent relative movement between said needle and said housing.

36. Safety device of claim 31, wherein said confining means comprises a plurality of hooking means integrated into said main body of said housing for securely retaining said needle within said housing to prevent relative movement between said needle and said housing.

37. Safety device of claim 31, wherein said confining means comprises at least one forked means integral of said main body for frictionally holding said needle within said housing.

38. Safety device of claim 31, wherein said grip means comprises an estomeric material.

39. Safety device to be used with a needle, comprising:

a base for connecting said needle to a syringe;

a housing having a first end and a second end;

compressible joint means flexibly connecting said housing to said base via said first end, said housing pivotable about said joint means toward a position in substantial alignment along the longitudinal axis of said needle for enveloping said needle; and

means adapted to said second end to sealingly secure the tip of said needle when a compressive force resulting from a relative movement of said housing and said base being urged toward each other is applied to said joint means to compress the same.

40. Safety device of claim 39, wherein said joint means comprises a compressible hinge integrally connecting said first end of said housing to said base.

41. Safety device of claim 39, wherein said joint means comprises a compressible hinge integrally connecting said first end of said housing to a shoulder member extending from said base.

42. Safety device of claim 39, wherein said sealingly secure means comprises an elastomeric material for firmly gripping the tip of said needle after said elastomeric material has been urged against said needle and penetrated thereby.

43. Safety device of claim 39, wherein said housing comprises an elongated slot through which said needle passes when said housing is pivoted to said position.

44. Safety device of claim 39, further comprising:

means in said housing for retaining said needle within said housing once said housing has been pivoted to said position.

45. Safety device of claim 44, wherein said retaining means comprises a hooking means integral of said housing for 3 securely confining said needle within said housing to prevent relative movement between said needle and said housing.

46. Safety device of claim 44, wherein said retaining means comprises a plurality of hooking means integrated to said housing for securely confining said needle within said housing to prevent relative movement between said needle and said housing.

47. Safety device of claim 44, wherein said retaining means comprises at least one forked means for frictionally holding said needle within said housing.

48. Safety device of claim 50, further comprising:

an internal bore taperedly extending throughout said protrusion and said second portion to provide a direct passage for fluid transiting between said ejection end of said syringe and said needle hub.

49. Safety device of claim 50, wherein said protrusion of said first portion has a through bore substantially the size of the bore of said needle;

and

wherein said second portion 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 portion is mated to said ejection end for substantially reducing the volume of space through which fluid transits between said syringe and said needle.

50. Safety device of claim 39, wherein said needle is integrated to a hub and wherein said base comprises:

a first portion including a protrusion and securing means substantially surrounding said protrusion for providing secured mating of said protrusion to said hub of said needle;

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

51. Safety device of claim 50, wherein said securing means comprises an annular collar having at its inner circumference threads for accepting said hub of said needle.

52. Safety device of claim 50, wherein said mating means of said second portion comprises a bore extending substantially throughout said second portion for slip-fittedly mating with said ejection end of said syringe.

53. Safety device of claim 50, wherein said mating means of said second portion comprises means at the distal end of said second portion for threadedly mating with an internally threaded collar surrounding said ejection end of said syringe.

54. Safety device to be used with a needle, comprising:

a base having integral first and second portions for coupling said needle to a syringe;

a housing having a first end and a capped end;

compressible means flexibly coupling said first end of said housing to said second portion of said base so that said housing is pivotable about said compressible means to an operative position to substantially align along the longitudinal axis of said needle for enveloping the same;

means adapted to said capped end of said housing to sealingly secure the tip of said needle after said housing has been pivoted to envelop said needle and said housing and said base urged relative toward each other to compress said compressible means longitudinally along the length of said needle.

55. Safety device of claim 54, wherein said compressible means comprises a collapsible living hinge connecting said first end of said housing to a shoulder member extending from said second portion of said base.

56. Safety device of claim 54, further comprising:

means in said housing for retaining said needle within said housing once said housing has been pivoted to said position.

57. Safety device of claim 54, wherein said sealingly secure means comprises an elastomeric material for firmly gripping the tip of said needle after said elastomeric material has been urged against said needle and penetrated thereby.