Port assembly for use with needleless connector

• US 8,062,280 B2
• Filed: 08/19/2008
• Issued: 11/22/2011
• Est. Priority Date: 08/19/2008
• Status: Expired due to Fees

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Inventors: Liu, Dan, Perry, Mark C., Daniels, Lewis E. Jr., Hsu, David D., Winje, James B., Chamernik, Richard F., Rondeau, Georges, Henaut, Eric J., Di Stefani, Gianni, Jepson, Steven C.
• Primary Examiner(s): DEAK, LESLIE R
• Application Number:
  US12/194,137
• Publication Number:
  US 20100049160A1
• Time in Patent Office: 1,190 Days
• Field of Search: 604/403, 604411-415, 604/503
• US Class Current: 604/415
• CPC Class Codes: A61J 1/10 Bag-type containers
• CPC Class Codes: A61J 1/1475 Inlet or outlet ports
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2044 having slits
• CPC Class Codes: A61J 1/2051 having tap means, e.g. tap means activated by sliding
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 2039/263 where the fluid space within the valve is decreasing upon disconnection
• CPC Class Codes: A61M 2039/267 having a sealing sleeve around a tubular or solid stem portion of the connector
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• 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 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14

Abstract

A port assembly includes a housing with an opening and a bore therethrough, a slit septum disposed in the bore to control access through the opening, a base joined to the housing and having a membrane attached thereto, a perforator having a first end abutting the slit septum and a second end aligned with the membrane, and a resilient member disposed between the perforator and the base. The port assembly may be used in a fluid container that includes a receptacle for retaining a fluid, and at least one conduit in communication with the receptacle. The at least one conduit may be defined, at least in part, by the port assembly.

Claims

1. A fluid container comprising:

a receptacle for retaining a fluid;

at least one conduit in communication with the receptacle; and

the at least one conduit defined, at least in part, by a port assembly,

the port assembly including a housing with an opening and a bore therethrough, a slit septum disposed in the bore to control access through the opening and having an outer surface concave prior to assembly, a base joined to the housing and having a membrane attached thereto, a perforator having a first end abutting the slit septum and a second end aligned with the membrane, and a resilient member disposed between the perforator and the base and biasing the first end of the perforator to maintain the outer surface of the slit septum substantially planar as assembled.

2. The fluid container according to claim 1, wherein an inner surface of the slit septum is convex and the first end of the perforator is concave, the inner surface of the slit septum and the first end of the perforator having a mating curvature.

3. The fluid container according to claim 2, wherein the slit septum comprises an overmolded septum.

4. The fluid container according to claim 1, wherein the slit septum comprises a sleeve having first and second ends and an inwardly-depending ring disposed at the second end of the sleeve, the inwardly-depending ring cooperating with an outer surface of the perforator.

5. The fluid container according to claim 1, wherein the slit septum comprises a sleeve having first and second ends and an inner surface, and the perforator comprises an outwardly depending wiper disposed at the first end of the perforator that cooperates with the inner surface of the sleeve between the first and second ends.

6. The fluid container according to claim 1, wherein the perforator includes at least one passage at the first end and a flange disposed between the first and second ends, and the port assembly comprises a gasket disposed on the flange, the gasket abutting the bore of the housing.

7. The fluid container according to claim 1, wherein the resilient member comprises a flexible tube, the flexible tube having an open end in which a portion of the perforator is received and a closed end that is attached to the base to define the membrane.

8. The fluid container according to claim 1, wherein the perforator comprises at least one aperture disposed at the second end of the perforator.

9. The fluid container according to claim 8, wherein the perforator comprises two apertures disposed at the second end of the perforator opposite each other.

10. The fluid container according to claim 9, wherein the perforator comprises two lumens, each of the two lumens associated with one of the two apertures, one of the two lumens having a cross-sectional area that is smaller than a cross-sectional area of the other of the two lumens.

11. The fluid container according to claim 1, wherein the fluid container comprises a gondola, the base formed integrally with the gondola and defining the at least one conduit.

12. The fluid container according to claim 1, wherein the fluid container comprises a port tube, the base disposed in the port tube to define the at least one conduit.

13. A port assembly to be used in a conduit of a fluid container, the port assembly comprising:

a housing with an opening and a bore therethrough,

a slit septum disposed in the bore to control access through the opening and having an outer surface concave prior to assembly,

a base joined to the housing and having a membrane attached thereto,

a perforator having a first end abutting the slit septum and a second end aligned with the membrane, and

a resilient member disposed between the perforator and the base and biasing the first end of the perforator to maintain the outer surface of the slit septum substantially planar as assembled.

14. The port assembly according to claim 13, wherein an inner surface of the slit septum is convex and the first end of the perforator is concave, the inner surface of the slit septum and the first end of the perforator having a mating curvature.

15. The port assembly according to claim 13, wherein the slit septum comprises a sleeve having first and second ends and an inner surface, and the perforator comprises an outwardly depending wiper disposed at the first end of the perforator that cooperates with the inner surface of the sleeve between the first and second ends.

16. The port assembly according to claim 13, wherein the resilient member comprises a flexible tube, the flexible tube having an open end in which a portion of the perforator is received and a closed end that is attached to the base to define the membrane.

17. The port assembly according to claim 13, wherein the perforator comprises two apertures disposed at the first end of the perforator opposite each other.

18. The port assembly according to claim 17, wherein the perforator comprises two lumens, each of the two lumens associated with one of the two apertures, one of the two lumens having a cross-sectional are that is smaller than a cross-sectional area of the other of the two lumens.