Catheter hubs having a valve

• US 5,967,490 A
• Filed: 07/22/1997
• Issued: 10/19/1999
• Est. Priority Date: 01/08/1997
• Status: Expired due to Term

• Current Assignee: Span-America Medical Systems Inc. (Savaria Corp.)
• Original Assignee: Vadus Incorporated
• Inventors: Pike, Kevin H.
• Primary Examiner(s): LEE, KEVIN L
• Application Number:
  US08/898,605
• Time in Patent Office: 819 Days
• Field of Search: 251/149.1, 251/149.4, 604/256, 604/167, 604/249, 604/283
• US Class Current: 251/149.1
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24

Abstract

A catheter hub including a housing having a connection end defining a first fluid passageway and a catheter end defining a second fluid passageway. The housing includes a plurality of hub walls arranged in a geometric configuration. The hub walls define a valve chamber. The catheter hub further includes a valve positioned in the valve chamber for controlling fluid flow through the chamber between the first and second fluid passageways. The catheter hub further includes an actuator for actuating the valve. The catheter hub regulates fluid flow between the first and second fluid passageways.

Claims

1. A catheter hub comprising:

a housing having a connection end defining a first fluid passageway and a catheter end defining a second fluid passageway, said housing including a plurality of hub walls, with one hub wall forming a bottom of the housing and said bottom being wider than any other said hub wall, said plurality of hub walls defining a valve chamber;

a valve positioned in said valve chamber for controlling fluid flow in both directions through said chamber between said first and second fluid passageways wherein the valve is a solid member having a diameter larger than length to form a plug-type valve, and

an actuator means for actuating said valve.

2. The invention of claim 1, wherein said catheter end includes a catheter consisting of a polymeric material.

3. The invention of claim 1, wherein said connection end includes a plurality of threads.

4. The invention of claim 1, wherein said connection end defines an annular shoulder adjacent said valve chamber.

5. The invention of claim 1, wherein said housing includes a top and a bottom, at least one of said hub walls being planar at said bottom.

6. The invention of claim 1, wherein said housing includes a plurality of hub walls arranged in a polygonal configuration.

7. The invention of claim 6, wherein said polygonal configuration is a hexagon.

8. The invention of claim 1, wherein said housing includes a valve seat positioned in said valve chamber adjacent said catheter end.

9. The invention of claim 8, wherein said valve seat includes a plurality of fluid openings to allow for fluid flow between said valve chamber and said second fluid passageway.

10. The invention of claim 1, wherein said valve comprises resilient material, said valve extending substantially between said first and second fluid passageways.

11. The invention of claim 4, wherein said valve comprises resilient material having a substantially cylindrical configuration, said valve having an actuator end and a housing end, said actuator end being engaged with said annular shoulder, whereby actuation of said actuator means causes said actuator end to become disengaged from said shoulder to allow fluid flow through said first fluid passageway, said valve chamber and said second fluid passageway.

12. The invention of claim 11, wherein said actuator end includes an annular seal adjacent said annular shoulder.

13. The invention of claim 11, wherein said actuator end includes an actuator projection received by said first fluid passageway, a retaining flange positioned on said actuator projections, said actuator means engaging said retaining flange.

14. The invention of claim 1, wherein said valve includes an integral annular seal.

15. The invention of claim 1, further including a valve plate and at least one spring positioned within said valve chamber, wherein at least one spring is attached to the valve plate.

16. The invention of claim 14, wherein the valve further includes an actuator projection having a retaining flange, wherein the actuator means engages the retaining flange.

17. The invention of claim 10, wherein the resilient material defines an hourglass shape.

18. The invention of claim 1, wherein the valve is frusto-conical and further includes a spring wall, and the valve chamber further includes a spring positioned adjacent to said spring wall.

19. The invention of claim 1 wherein the valve is frusto-conical and further includes a face interaction portion and a plurality of opposed support legs having a center baffle position and an annular flange portion, wherein each support leg defines a leg opening, and wherein the valve further includes a center baffle positioned adjacent said leg openings in the center baffle position.