Medical connector with internal valve member movable within male luer projection

Patent metadata

Field	Value
Publication number	US-10105492-B2
Application number	US-201815916778-A
Country	US
Kind code	B2
Filing date	Mar 9, 2018
Priority date	Dec 30, 2003
Publication date	Oct 23, 2018
Grant date	Oct 23, 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 comprising:
a housing comprising:
a proximal region comprising:
a female luer end portion including an external thread on an outer surface of the female luer end portion, the female luer end portion being configured to receive a male luer,
a first channel portion, and
a generally tubular projection extending distally from the female luer end portion, and

a distal region comprising:
a second channel portion, and
a shroud comprising an internal thread configured to receive a separate medical connector;

a fluid flow path extending through the first channel portion and the second channel portion, at least a portion of the fluid flow path being configured to be opened and closed to permit passage of fluid through the medical connector;
a valve member having a closed position configured to inhibit fluid flow to or from the separate medical connector, the valve member having an open position configured to allow fluid flow to or from the separate medical connector, the valve member being configured to move generally longitudinally along the generally tubular projection as the valve member transitions between the closed position and the open position, the valve member comprising:
a valve channel in fluid communication with the first channel portion and the second channel portion, the valve channel extending between the valve member and the generally tubular projection, and
a seal contacting the generally tubular projection, the seal extending generally around at least a portion of the generally tubular projection in both the open position and the closed position,
wherein a portion of the fluid flow path located within the second channel portion is configured to be selectively opened when the separate medical connector is received by the shroud,
wherein the seal is positioned closer to the female luer end portion when the valve member is in the open position than when the valve member is in the closed position,
wherein, when the valve member transitions from the open position to the closed position, an increased fluid volume is created within the valve channel, and
wherein the valve member is biased towards the closed position; and

an actuating member positioned between the second channel portion and the shroud of the distal region of the housing, the actuating member configured to actuate the valve member from the closed position to the open position, wherein the actuating member is in contact with the valve member at a location proximal from a distal end of the valve member.

2. The medical connector of claim 1 , wherein the generally tubular projection is located entirely within the proximal region of the housing.

3. The medical connector of claim 1 wherein the generally tubular projection comprises a distal end tip located proximal from the shroud.

4. The medical connector of claim 1 wherein a portion of the fluid flow path located within the valve channel increases in width when the valve member transitions from the open position to the closed position.

5. The medical connector of claim 1 wherein the fluid flow path comprises proximal fluid path region located within the first channel portion and a distal fluid path region located within the second channel portion, and wherein the distal fluid path region and the proximal fluid path region are separated by an internal wall when the valve member is in the open position.

6. The medical connector of claim 1 , wherein the fluid flow path comprises a longitudinal section and a transverse section, and wherein the longitudinal section is in fluid communication with the transverse section.

7. The medical connector of claim 6 , wherein the transverse section is positioned within the distal region of the housing.

8. The medical connector of claim 1 , wherein the valve member comprises a plug at the distal end of the valve member, the plug configured to selectively obstruct fluid flow to or from the separate medical connector.

9. The medical connector of claim 1 , wherein the valve member is formed of a single piece of material.

10. The medical connector of claim 1 , wherein at least a portion of the actuating member extends along the shroud when the valve member is in the closed position.

11. The medical connector of claim 1 further comprising a second seal located distal from the seal of the valve member, the second seal configured to maintain fluid within the fluid flow path.

12. The medical connector of claim 11 , wherein the second seal does not move along with the valve member.

13. The medical connector of claim 1 further comprising a biasing member configured to bias the valve member toward the closed position.

14. The medical connector of claim 13 , wherein the biasing member is located within the proximal region of the housing.

15. The medical connector of claim 1 , further comprising:
a second seal located distal from the seal of the valve member, the second seal configured to maintain fluid within the fluid flow path; and
a biasing member configured to bias the valve member toward the closed position,
wherein a portion of the fluid flow path located within the valve channel increases in width when the valve member transitions from the open position to the closed position,
wherein the fluid flow path comprises a longitudinal section and a transverse section, and wherein the longitudinal section is in fluid communication with the transverse section, and
wherein at least a portion of the actuating member extends along the shroud when the valve member is in the closed position.

16. A medical connector comprising:
a housing comprising:
a proximal region comprising a female luer end portion and a generally tubular projection extending from the female luer end portion, the proximal region comprising a first channel portion, and
a distal region comprising a shroud, the shroud comprising an internal thread configured to receive a separate medical connector, the distal region comprising a second channel portion;

a valve member having a closed position and an open position, the valve member being configured to move generally longitudinally between the closed position and the open position with the separate medical connector, the valve member comprising a valve channel portion in fluid communication with the first channel portion and the second channel portion, wherein the valve member is configured to slidably engage the generally tubular projection;
a seal contacting the generally tubular projection of the proximal region of the housing, the seal extending generally around a portion of the generally tubular projection in both the open position and the closed position;
a fluid flow path extending through the first channel portion and the second channel portion, the fluid flow path comprising:
an intermediate fluid path region being located within the valve channel portion, the intermediate fluid path region comprising an internal fluid volume located between the valve member and the generally tubular projection of the proximal region of the housing,
wherein the internal fluid volume of the intermediate fluid path region is smaller when the valve member is in the open position than when the valve member is in the closed position, and
wherein, when the valve member transitions from the open position to the closed position, the internal fluid volume of the intermediate fluid path region increases, and

an actuating member configured to actuate the valve member from the closed position to the open position, wherein the actuating member is coupled to the valve member at a loca

Assignees

• Icu Medical Inc

Inventors

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

Classifications

• A61M5/14

  Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor · CPC title

• A61M5/16881

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

• A61M5/3134 Primary

  characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula · CPC title

• A61M2005/3103

  Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle · CPC title

• A61M5/34

  Constructions for connecting the needle {, e.g. to syringe nozzle or needle hub (connecting catheter tubes to hubs A61M25/0014)} · CPC title