Needleless connector with support member

Patent metadata

Field	Value
Publication number	US-11730944-B2
Application number	US-202117323835-A
Country	US
Kind code	B2
Filing date	May 18, 2021
Priority date	Mar 14, 2013
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

Needleless connectors are described herein. A needleless connector includes a body, a valve element at least partially disposed within the body, and a base. The valve element includes a cylindrical portion having an outwardly extending flange at a distal end. The flange has a bottom surface with an outer area and an inner area. The base includes a rim having a top surface that is in contact with an outer area of the flange of the valve element, the rim defining a recess with a bottom surface separated from the top surface of the rim, and at least one support member having a top surface spaced apart from the top surface of the rim and configured to resist deformation of the flange toward the recess.

First claim

What is claimed is:

1. A needleless connector, comprising:
a valve element at least partially disposed within a body, the valve element comprising a cylindrical portion having an inner surface, the cylindrical portion comprising an outwardly extending flange at a distal end, the flange having a bottom surface, and the inner surface defining an interior volume; and
a base comprising a rim defining a recess, an air passage extending through the recess to an ambient environment, a fluid flow passage through the base and separate from the air passage, wherein a portion of the rim extends into the recess to form at least one support member, the rim comprising a top surface defining a first plane,
wherein, when the top surface of the rim is engaged against an outer area of the bottom surface of the flange, the at least one support member engages an inner area of the bottom surface of the flange, and the at least one support member is configured to resist deformation of the flange toward the recess.

2. The needleless connector of claim 1 , wherein the recess comprises a bottom surface distally separated from the top surface of the rim.

3. The needleless connector of claim 2 , wherein the bottom surface of the recess defines a second plane spaced apart from the first plane.

4. The needleless connector of claim 2 , wherein the bottom surface of the recess extends from a respective first point on the rim that is on one side of a center axis, the center axis passing through a center of the recess and a center of the air passage, to a respective second point on the rim that is on the other side of the center axis.

5. The needleless connector of claim 1 , wherein the at least one support member extending past the inner surface of the cylindrical portion of the valve element forming the interior volume of the valve element.

6. The needleless connector of claim 1 , wherein the base comprises another air passage, and the at least one support member extends between the air passage and the another air passage.

7. The needleless connector of claim 1 , wherein the at least one support member extends inwardly of an inner area of the bottom surface of the flange.

8. The needleless connector of claim 1 , wherein the at least one support member extends longitudinally parallel to a longitudinal axis of the air passage.

9. The needleless connector of claim 1 , wherein, when the valve element is connected to the base, the interior volume is formed within the valve element, and the fluid flow passage is formed external to the valve element.

10. A needleless connector, comprising:
a body having a port forming a proximal end of the needleless connector, a base forming a distal end of the needleless connector, and a valve element at least partially disposed within an internal cavity of the body;
the valve element comprising a cylindrical portion having an inner surface and an outwardly extending flange, the flange having a bottom surface and the inner surface defining an interior volume;
the base comprising a rim defining a recess, an air passage extending through the recess to an ambient environment, a fluid flow passage through the base and separate from the air passage, wherein a portion of the rim extends into the recess to form at least one support member, the rim comprising a top surface defining a first plane, the air passage extending from the recess through the base to an ambient environment;
wherein, when the top surface of the rim is engaged against an outer area of the bottom surface of the flange, the at least one support member engages an inner area of the bottom surface of the flange, and the at least one support member is configured to resist deformation of the flange toward the recess.

11. The needleless connector of claim 10 wherein the recess comprises a bottom surface distally separated from the top surface of the rim.

12. The needleless connector of claim 11 , wherein the bottom surface of the recess defines a second plane spaced apart from the first plane.

13. The needleless connector of claim 11 , wherein the bottom surface of the recess extends from a respective first point on the rim that is on one side of a center axis, the center axis passing through a center of the recess and a center of the air passage, to a respective second point on the rim that is on the other side of the center axis.

14. The needleless connector of claim 10 , wherein the at least one support member extending past the inner surface of the cylindrical portion of the valve element forming the interior volume of the valve element.

15. The needleless connector of claim 10 , wherein the base comprises another air passage, and the at least one support member extends between the air passage and the another air passage.

16. The needleless connector of claim 10 , wherein the at least one support member extends inwardly of an inner area of the bottom surface of the flange.

17. The needleless connector of claim 10 , wherein the at least one support member extends longitudinally parallel to a longitudinal axis of the air passage.

18. The needleless connector of claim 10 , wherein, when the valve element is connected to the base, the interior volume is formed within the valve element, and the fluid flow passage is formed external to the valve element.

Assignees

• Carefusion 303 Inc

Inventors

• Yeh Jonathan
• Zollinger Christopher J
• Mansour George Michel
• Quach Matthew

Classifications

• A61M39/24 Primary

  Check- or non-return valves · 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

• A61M39/26

  Valves closing automatically on disconnecting the line and opening on reconnection thereof {(check valves A61M39/24)} · CPC title

• A61M2039/2406

  designed to quickly shut upon the presence of back-pressure · CPC title

• A61M2039/2433

  Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc · CPC title