Medical connector with internal valve member movable within male luer projection

Patent metadata

Field	Value
Publication number	US-9913945-B2
Application number	US-201715648147-A
Country	US
Kind code	B2
Filing date	Jul 12, 2017
Priority date	Dec 30, 2003
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

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.

First claim

The following is claimed:

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 , wh

Assignees

• Icu Medical Inc

Inventors

• Simpson Philip J
• Gillespie Walter D
• Matsuura David G

Classifications

• A61M2039/1066

  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 title

• A61M39/10

  Tube connectors; Tube couplings {(A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014)} · CPC title

• A61M2005/3128

  Incorporating one-way valves, e.g. pressure-relief or non-return valves · CPC title

• A61M2205/19

  Constructional features of carpules, syringes or blisters · CPC title

• A61M5/16881

  Regulating valves (on-off valves, e.g. clamps A61M39/28) · CPC title