Connector for transferring fluid and method of use

Patent metadata

Field	Value
Publication number	US-9393398-B2
Application number	US-201414172766-A
Country	US
Kind code	B2
Filing date	Feb 4, 2014
Priority date	Aug 9, 2004
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A connector for transferring fluid and method therefore. The connector may have a first port, a second port, and a third port which may be coupled together at a main channel with a first valve element therein controlling fluid flow through the first port. The first valve element is supported by a valve element support positioned between the first port and the third port, and the second port joins the main channel to provide a fluid path around the first valve element and through the third port.

First claim

What is claimed is:

1. A connector for transferring fluid, the connector comprising:
a housing having a first port, a second port configured to accept an actuator, a third port, and an internal chamber fluidly coupled to the first, second, and third ports; and
a first valve element having a first position and a second position within the internal chamber, the first valve element comprising a head portion and a body portion having a cavity with a perimeter, the head portion configured to seal the second port when the first valve element is in the first position, the body portion configured to seal the perimeter of the cavity to separate the internal chamber into (i) an air chamber, which is in fluid communication with an outside of the housing via a passage of the housing, and (ii) a liquid chamber that is continuously coupled to the first and third ports regardless of the position of the first valve element.

2. The connector of claim 1 , wherein the actuator comprises a lumen, and the first valve element is configured such that introduction of the actuator into the second port displaces the first valve element to the second position, thereby opening a fluid path from the lumen of the actuator to the liquid chamber.

3. The connector of claim 2 , wherein removal of the actuator from the second port allows the first valve element to move to the first position.

4. The connector of claim 3 , wherein the first valve element is further configured such that the air chamber has a first air volume when the first valve element is in the first position and a second air volume when the first valve element is in the second position, the second air volume being less than the first air volume.

5. The connector of claim 2 , wherein the housing and first valve element are configured such that the liquid chamber has a first liquid volume when the first valve element is in the first position and a second liquid volume when the actuator is introduced into the second port, the second liquid volume being larger than the first liquid volume.

6. The connector of claim 5 , further comprising a second valve element disposed between the first port and the internal chamber, the second valve element configured to allow fluid to flow from the first port to the internal chamber while resisting flow from the internal chamber to the first port, such that removal of the actuator from the second port causes the liquid volume to expel fluid through the third port.

7. The connector of claim 1 , wherein the actuator comprises a male Luer fitting.

8. The connector of claim 1 , wherein the first port is configured to accept a male Luer fitting.

9. The connector of claim 1 , wherein the head portion comprises at least one notch.

10. An intravenous (IV) set, comprising:
a connector comprising:
a housing having a first port, a second port configured to accept an actuator, a third port, and an internal chamber fluidly coupled to the first, second, and third ports; and
a first valve element having a first position and a second position within the internal chamber, the first valve element comprising a head portion and a body portion having a cavity with a perimeter, the head portion configured to seal the second port when the first valve element is in the first position, the body portion configured to seal the perimeter of the cavity to separate the internal chamber into (i) an air chamber, which is in fluid communication with an outside of the housing via a passage of the housing, and (ii) a liquid chamber that is continuously coupled to the first and third ports regardless of the position of the first valve element;
a first tube coupled to the first port; and
a second tube coupled to the third port.

11. The IV set of claim 10 , further comprising a first fitting configured to couple to an IV container, wherein the first tube has a first end that is coupled to the first port and a second end that is coupled to the first fitting.

12. The IV set of claim 11 , further comprising a second fitting, wherein the second tube has a first end that is coupled to the third port and a second end that is coupled to the second fitting.

13. The IV set of claim 12 , wherein the second fitting comprises a Luer fitting.

14. The IV set of claim 10 , wherein the first and second tubes are bonded to the first and third ports, respectively.

15. The IV set of claim 10 , wherein the actuator comprises a lumen, and the first valve element is configured such that introduction of the actuator into the second port displaces the first valve element to the second position, thereby opening a fluid path from the lumen of the actuator to the liquid chamber.

16. The IV set of claim 10 , wherein the first valve element is further configured such that the air chamber has a first air volume when the first valve element is in the first position and a second air volume when the first valve element is in the second position, the second air volume being less than the first air volume.

17. The IV set of claim 10 , wherein the housing and first valve element are configured such that the liquid chamber has a first liquid volume when the first valve element is in the first position and a second liquid volume when the actuator is introduced into the second port, the second liquid volume being larger than the first liquid volume.

18. A method of introducing a second medical fluid into a flow of a first medical fluid, the method comprising the steps of:
coupling a first source containing the first medical fluid to a first port of a connector further comprising a second port configured to accept an actuator, a third port, an internal chamber fluidically coupled to the first, second, and third ports, a first valve element having a first position and a second position within the internal chamber, the first valve element comprising a head portion and a body portion having a cavity with a perimeter, the head portion configured to seal the second port when the first valve element is in the first position, the body portion configured to seal the perimeter of the cavity to separate the internal chamber into an air chamber and a liquid chamber, the air chamber having a first air volume when the first valve element is in the first position and a second air volume when the first valve element is in the second position, the second air volume being less than the first air volume, wherein the housing further comprises a passage from the air chamber to an outside of the housing, and wherein the liquid chamber is continuously coupled to the first and third ports regardless of the position of the first valve element;
coupling the third port to a recipient, such that the first medical fluid flows from the first source to the recipient;
introducing an actuator having a lumen that is fluidically coupled to a second source containing the second medical fluid into the second port, thereby displacing the first valve element to the second position and opening a fluid path from the source of the second fluid to the liquid chamber; and
causing the second medical fluid to flow from the second source through the lumen into the liquid chamber.

19. The method of claim 18 , further comprising the step of:
removing the actuator from the second port, thereby allowing the first valve element to move to the first position.

20. The method of claim 19 , wherein the connector further comprises a second valve element disposed between the first port and the internal chamber, the second valve element configured to allow fluid to flow from the first po

Assignees

• Carefusion 303 Inc

Inventors

• Truitt Tim L
• Mazza Alex Truman
• Colwell Cliff

Classifications

• A61M39/02 Primary

  Access sites · CPC title

• Y10T137/86493

  Multi-way valve unit · CPC title

• F16K15/141

  the closure elements not being fixed to the valve body · CPC title

• Y10T137/9029

  With coupling · CPC title

• Y10T137/7838

  Plural · CPC title