Luer integrated air venting system

• US 8,070,725 B2
• Filed: 08/15/2008
• Issued: 12/06/2011
• Est. Priority Date: 08/15/2008
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Christensen, Kelly D.
• Primary Examiner(s): KOHARSKI, CHRISTOPHER
• Application Number:
  US12/192,293
• Publication Number:
  US 20100042048A1
• Time in Patent Office: 1,208 Days
• Field of Search: 604/45, 604/122, 604/126, 604533-537, 604/284, 604/164.01, 604/167.01, 604/167.02, 604/168.01, 604/256
• US Class Current: 604/122
• CPC Class Codes: A61M 2039/0258 for vascular access, e.g. blood stream access
• CPC Class Codes: A61M 2039/205 comprising air venting means
• CPC Class Codes: A61M 2205/7536 allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0693 Flashback chambers
• CPC Class Codes: A61M 39/20 Closure caps or plugs for connectors or open ends of tubes
• CPC Class Codes: A61M 5/385 using hydrophobic filters

Abstract

A vascular access device incorporating a luer integrated air venting system, including a female luer fitting having a venting mechanism located within the female luer fitting and a fluid diverter located within the vent mechanism. The venting mechanism providing communication between said vascular access device and ambient surroundings until contact with a fluid.

Claims

1. A medical device comprising:

a first vascular access device comprising a luer integrated air venting system, having

a female luer fitting having an inner surface, a distal end, a proximal end, and a passage extending between said ends;

an annular venting mechanism located within said passage of said female luer fitting and seated against the inner surface of the female luer, a distal end of the annular venting mechanism having a cutout in fluid communication with a passageway extending through the annular venting mechanism; and

a fluid diverter located within said passageway of said annular vent mechanism, said annular venting mechanism providing communication between said vascular access device and ambient surroundings, wherein said venting mechanism permits an outflow of air from said vascular access device to said ambient surroundings through said annular venting mechanism, and wherein said annular venting mechanism substantially prevents an outflow of fluid from said vascular access device to said ambient surroundings through said annular venting mechanism.

2. The medical device of claim 1, wherein said annular venting mechanism further comprises a venting plug.

3. The medical device of claim 2, wherein said venting plug further comprises at least one projection at said distal end.

4. The medical device of claim 3, wherein said at least one projection further comprises an indent on an internal surface of said projection.

5. The medical device of claim 1, wherein said annular venting mechanism comprises a porous hydrophobic material or said annular venting mechanism comprises a porous material with a hydrophobic surface.

6. The medical device of claim 1, wherein said fluid diverter is moveable within said passageway of said annular venting mechanism from a proximal venting position where fluid is prevented from flowing past said fluid diverter in said passageway, to a distal locking position where fluid is permitted to flow through said passageway around said fluid diverter.

7. The medical device of claim 1, wherein said fluid diverter further comprises a disc.

8. The medical device of claim 1, further comprising a second vascular access device having a male luer fitting, wherein said female luer fitting is mated with said male luer fitting to connect said first and second vascular devices, and wherein said annular venting mechanism is interposedly located between said female luer fitting and said male luer fitting.

9. The medical device of claim 1, wherein said female luer fitting further comprises a recess for retaining said annular venting mechanism within said female luer fitting.

10. The medical device of claim 8, wherein at least one of said first and said second vascular access devices is a catheter.

12. The vascular access device of claim 1, wherein the distal portion of the annular venting mechanism further includes a projection.

13. The vascular access device of claim 8, wherein the projection includes an indent on an internal surface of the projection.

14. The vascular access device of claim 9, wherein the second position of the fluid diverter is within the indent on an internal surface of the projection.

15. The vascular access device of claim 10, wherein the distal portion has a second projection, the second projection having an indent on an internal surface of the projection, and the second position of the fluid diverter is also within the indent on an internal surface of the second projection.

16. The vascular access device of claim 1, wherein the annular venting mechanism permits an outflow of air from the vascular access device to the ambient surroundings, and substantially prevents an outflow of fluid from the vascular access device to the ambient surroundings.

17. The vascular access device of claim 1, wherein the annular venting mechanism comprises a porous hydrophobic material or a porous material with a hydrophobic surface.

19. The vascular access device of claim 14, wherein the annular venting mechanism permits an outflow of air from the vascular access device to the ambient surroundings, and substantially prevents an outflow of fluid from the vascular access device to the ambient surroundings.

20. The vascular access device of claim 14, wherein the annular venting mechanism comprises a porous hydrophobic material or a porous material with a hydrophobic surface.

11. A vascular access device comprising:

a female luer fitting having an inner surface;

an annular venting mechanism having an inner surface, an outer surface, a proximal portion, and a distal portion, the annular venting mechanism being disposed within the female luer fitting such that the outer surface of the annular venting mechanism is seated against the inner surface of the female luer fitting, the venting mechanism having a passage extending therethrough, the distal portion having a cut out in fluid communication with the passage;

a fluid diverter disposed at least partially within the passage of the venting mechanism and being movable from a first position within the venting mechanism to a second position within the venting mechanism, the fluid diverter blocking fluid flow through the passage when in the first position and permitting fluid flow through the passage when in the second position.

18. A vascular access device comprising:

a female luer fitting having an inner surface;

an annular venting mechanism having an inner surface, an outer surface, a proximal portion, and a distal portion, the annular venting mechanism being disposed within the female luer fitting such that the outer surface of the annular venting mechanism is seated against the inner surface of the female luer fitting, the venting mechanism having a passage extending therethrough, the distal portion having a cut out in fluid communication with the passage;

a fluid diverter disposed at least partially within the passage of the venting mechanism and being movable from a first position to a second position, wherein the first position is within the proximal portion of the annular venting mechanism, and the second position is within the distal portion of the annular venting mechanism adjacent the cutout, the fluid diverter further blocking fluid flow through the passage when in the first position and permitting fluid flow through the cutout and the passage when in the second position.