Medical connector with internal valve member movable within male luer projection

• US 9,913,945 B2
• Filed: 07/12/2017
• Issued: 03/13/2018
• Est. Priority Date: 12/30/2003
• Status: Active Grant

• Current Assignee: ICU Medical Incorporated
• Original Assignee: ICU Medical Incorporated
• Inventors: Simpson, Philip J., Gillespie, Walter D., Matsuura, David G.
• Primary Examiner(s): Bosworth, Kami A
• Application Number:
  US15/648,147
• Publication Number:
  US 20170304547A1
• Time in Patent Office: 244 Days
• CPC Class Codes: A61M 2005/3103 Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
• CPC Class Codes: A61M 2005/3128 Incorporating one-way valves, e.g. pressure-relief or non-return valves
• CPC Class Codes: A61M 2039/1033 Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
• CPC Class Codes: A61M 2039/1066 having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
• CPC Class Codes: A61M 2205/19 Constructional features of carpules, syringes or blisters
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: A61M 5/16881 Regulating valves on-off valves, e.g. clamps A61M39/28
• CPC Class Codes: A61M 5/31 Details
• CPC Class Codes: A61M 5/3134 characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
• CPC Class Codes: A61M 5/34 Constructions for connecting the needle , e.g. to syringe nozzle or needle hub connecting catheter tubes to hubs A61M25/0014

Abstract

Disclosed herein is a valve assembly comprising a male luer end portion and a female luer end portion and a passage for the transfer of fluids extending between the male and female luer end portions, valve means movable between a first position, in which the passage is closed, and a second position, in which the passage is open, biasing means for biasing the valve means toward the first position, and actuating means extending into the male luer end portion and coupled to the valve means to actuate the valve means when a female luer end portion of a medical accessory is engaged with the male luer end portion.

Claims

1. A medical connector configured to receive a male luer end of a medical article, the medical connector comprising:

a housing having a proximal housing portion and a distal housing portion;

an external radially outwardly protruding engagement surface configured to engage the medical article, the engagement surface comprising a proximal end and a distal end;

a threaded sheath surrounding at least a portion of a male luer projection;

a valve member that is longitudinally movable between a closed position and an open position, the valve member comprising a valve channel that is formed of a single piece of material, the valve channel comprising a hollow interior with a proximal end and a distal end, the proximal end of the hollow interior being more proximal than the distal end of the engagement surface in the closed position, and the distal end of the hollow interior being positioned in the male luer projection in the closed position, the valve member further comprising;

at least one distal opening; and

a plug portion located in a distal direction from the at least one distal opening, the plug portion configured to obstruct fluid communication between the male luer projection and the hollow interior of the valve member when in the closed position,

wherein the valve member when in the closed position is configured to inhibit fluid flow through the hollow interior of the valve member to or from the male luer projection, wherein the valve member when in the open position is configured to allow fluid flow through the hollow interior to or from the male luer projection, and

wherein at least a portion of the valve member is positioned outside of the male luer projection when in both the open position and the closed position;

a biasing member that contacts a proximal half of the valve member, the biasing member being configured to assert a restoring force on the valve member to move the valve member longitudinally within the housing to the closed position; and

a seal that contacts a portion of the valve member within the distal housing portion, the seal being located distal from where the biasing member contacts the valve member, the seal contacting the valve member in both the open position and the closed position, a distal-most portion of the seal being located in a proximal direction from a distal-most portion of the plug portion when the valve member is in the closed position,

wherein the valve member is biased toward the closed position.

2. The medical connector of claim 1, wherein at least a portion of the valve member is positioned within the male luer projection when in both the open and closed positions.

3. The medical connector of claim 1, wherein the valve member further comprises a proximal-facing end surface comprising a proximal opening.

4. The medical connector of claim 1, wherein the at least one distal opening of the valve member comprises two distal openings.

5. A combination of the medical connector of claim 1 and the medical article.

6. A medical connector configured to receive a male luer end of a medical article, the medical connector comprising:

a housing having separate proximal and distal regions joined together;

a female luer configured to receive the male luer end of the medical article;

a male luer projection at the distal region;

a valve member being longitudinally movable between a closed position and an open position, the valve member comprising;

an internal fluid pathway,

an open-ended proximal end surface,

at least one distal opening, and

a plug portion located in a distal direction from the at least one distal opening, the plug portion configured to obstruct fluid communication between the male luer projection and the internal fluid pathway when in the closed position,

wherein the valve member when in the closed position is configured to inhibit fluid flow between the internal fluid pathway and the male luer projection, wherein the valve member when in the open position is configured to allow fluid flow between the internal fluid pathway and the male luer projection, and

wherein at least a portion of the valve member is positioned outside of the male luer projection in both the open position and the closed position;

a first seal located in the distal region of the housing that contacts at least a portion of the valve member in the distal region of the housing, the first seal contacting the valve member only in a proximal direction from the plug portion, the first seal being separate from the valve member, the first seal being located in the same position when the valve member is in the open position and the closed position; and

a second seal,

wherein both the first seal and the second seal contact the valve member when the valve member is in the open position and the closed position, and

wherein the valve member is biased toward the closed position.

7. The medical connector of claim 6, wherein the open-ended proximal end surface is wider than a distal-most end tip of the valve member.

8. The medical connector of claim 6, wherein at least a portion of the valve member is positioned within the male luer projection in the closed position.

9. The medical connector of claim 6, wherein the valve member further is formed of a single piece of material.

10. The medical connector of claim 6, wherein the valve member extends along the housing from:

(i) a first region of the medical connector that is configured to receive the male luer end of the medical article, to

(ii) a second region of the medical connector containing the male luer projection.

11. The medical connector of claim 6, wherein the at least one distal opening of the valve member comprises two distal openings.

12. A combination of the medical connector of claim 6 and the medical article.

13. A medical connector comprising:

a housing having a proximal portion and a distal portion;

a female luer;

a male luer projection within the distal portion; and

a valve member being longitudinally movable between a closed position and an open position, the valve member comprising;

an internal fluid pathway,

a proximal end being moveable between the open position and the closed position, the moveable proximal end comprising an open-ended proximal end surface,

at least one distal opening, and

a distal end portion located in a distal direction from the at least one distal opening, the distal end portion configured to obstruct fluid communication between the male luer projection and the internal fluid pathway when in the closed position,

wherein the valve member when in the closed position is configured to inhibit fluid flow through the internal fluid pathway, wherein the valve member when in the open position is configured to allow fluid flow through the internal fluid pathway,

wherein at least a portion of the valve member is positioned within the male luer projection in the closed position, and

wherein at least a portion of the valve member is positioned outside of the male luer projection in both the open position and the closed position; and

wherein the valve member is biased toward the closed position.

14. The medical connector of claim 13, wherein the open-ended proximal end surface is wider than a distal-most end tip of the valve member.

15. The medical connector of claim 13, wherein the internal fluid pathway is formed of a single piece of material.

16. The medical connector of claim 13, wherein the at least one distal opening of the valve member comprises two distal openings.

17. The medical connector of claim 13, wherein the distal end portion of the valve member comprises a plug.

18. The medical connector of claim 13 further comprising an actuating member configured to actuate at least a portion of the valve member from the closed position to the open position.

19. The medical connector of claim 15, wherein the valve member extends along the housing from:

(i) a first region of the medical connector that is configured to receive a male luer end of a medical article, to

(ii) a second region of the medical connector containing within the male luer projection.

20. The medical connector of claim 13 further comprising a biasing member configured to assert a restoring force on the valve member to move the valve member longitudinally within the housing to the closed position, wherein the biasing member contacts a proximal half of the valve member.

21. A medical connector configured to receive a male luer end of a medical article, the medical connector comprising:

a housing;

a female luer configured to receive the male luer end of the medical article;

a male luer projection;

a threaded sheath surrounding at least a portion of the male luer projection the threaded sheath comprising one or more threads; and

a valve member being longitudinally movable between a closed position and an open position, the valve member comprising;

an internal fluid pathway,

at least one opening being moveable with the valve member, a distal end of the opening being located distal from a proximal end of the one or more threads of the threaded sheath in the open position, and

a distal end portion located in a distal direction from the at least one opening, the distal end portion configured to obstruct fluid communication between the male luer projection and the internal fluid pathway when in the closed position, the distal end portion comprising a distal-most end tip that is positioned within the male luer projection in both the open position and the closed position, wherein a proximal-most end of the valve member is wider than the distal-most end tip,

wherein the valve member when in the closed position is configured to inhibit fluid flow between the internal fluid pathway and the male luer projection, wherein the valve member when in the open position is configured to allow fluid flow between the internal fluid pathway and the male luer projection,

wherein at least a portion of the valve member is positioned outside of the male luer projection in both the open position and the closed position, and

wherein the valve member is biased toward the closed position.

22. The medical connector of claim 21, wherein at least a portion of the valve member is positioned within the male luer projection in the closed position.

23. The medical connector of claim 21, wherein the proximal-most end of the valve member comprises a proximal-facing opening.

24. The medical connector of claim 21, wherein the at least one opening of the valve member comprises two distal openings.

25. The medical connector of claim 21, wherein the internal fluid pathway is formed of a single piece of material.

26. The medical connector of claim 21, wherein the distal end portion of the valve member comprises a plug.

27. The medical connector of claim 21 further comprising an actuating member configured to actuate at least a portion of the valve member from the closed position to the open position.

28. The medical connector of claim 25, wherein the valve member extends along the housing from:

(i) a first region of the medical connector that is configured to receive the male luer end of the medical article, to

(ii) a second region of the medical connector containing the male luer projection.

29. The medical connector of claim 21 further comprising a biasing member configured to assert a restoring force on the valve member to move the valve member longitudinally within the housing to the closed position, wherein the biasing member contacts a proximal half of the valve member.

30. A combination of the medical connector of claim 21 and the medical article.