Quick connect fluid conduit connector having latch with integral spring arms for button release

Patent metadata

Field	Value
Publication number	US-9695966-B2
Application number	US-201414474676-A
Country	US
Kind code	B2
Filing date	Sep 2, 2014
Priority date	Sep 13, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A quick connect fluid conduit connector includes male and female connector components that releasably engage with each other to fluidically connect two fluid conduits. The female connector component defines a receptacle for receiving a distal end of the male connector component, and a latch in the female connector component is configured to engage with a latch catch groove on the male connector component to reliably secure these components together in a sealed coupling. The latch is a unitary piece having a large release button integrally formed with multiple spring arms, thereby simplifying assembly of the fluid conduit connector and providing redundancy against failure modes. In addition, the female connector component may also include a lock mechanism engaged with the latch for providing additional protection against unintentional disconnection of the male and female connector components.

First claim

What is claimed is:

1. A female connector component configured to be coupled to a male connector component comprising a first fluid conduit and a latch catch groove, the female connector component comprising:
a connector housing defining a proximal end, a female distal end and a receptacle extending proximally from an opening in said female distal end;
a second fluid conduit defined by a second elongate bore extending from said receptacle;
a latch operatively engaged with said connector housing for releasably retaining the male connector component, said latch including:
a release button positioned along a side of said connector housing,
a latch plate extending from said release button at least partially across said receptacle and configured to latch into engagement with the male connector component, and
at least one spring arm integrally formed as a unitary piece with said release button and extending into said connector housing, said at least one spring arm engaging said connector housing to bias said latch towards a latched position in which said latch plate engages the latch catch groove to prevent removal of the male connector component from said receptacle, said release button configured to be depressed into said connector housing to move said latch against the bias and towards an unlatched position in which said latch plate disengages from the latch catch groove; and

a lock mechanism comprising a lock slider operatively engaged with said latch, said lock slider being slidable distally and proximally along the side of said connector housing between a locked position, in which movement of said latch towards the unlatched position is prevented, and an unlocked position where operation of said latch is unaffected.

2. The female connector component of claim 1 , wherein said lock mechanism further includes at least one lock lug extending downwardly from said lock slider and through lug apertures in said release button, and wherein said female connector component further comprises:
a standoff projecting inwardly from said connector housing and outwardly from said receptacle to be located underneath said at least one lock lug when said lock slider is moved to the locked position, thereby preventing further downward movement of said lock slider and said latch away from the latched position.

3. The female connector component of claim 2 , wherein said latch includes at least one fin projecting downwardly from said release button adjacent to said at least one lock lug, and wherein said at least one lock lug includes a retention detent configured to snap into engagement with said at least one fin to maintain said lock mechanism in position on said latch.

4. The female connector component of claim 1 , wherein said latch further includes a shaped aperture and said lock mechanism further includes a spring pin extending downwardly from said lock slider into engagement within said shaped aperture, the engagement of said spring pin and said shaped aperture preventing unintentional movements of said lock slider between the locked and unlocked positions.

5. The female connector component of claim 1 , wherein said release button of said latch further includes visual indicia revealed by movement of said lock slider to indicate whether said lock mechanism is in the locked or unlocked position.

6. The female connector component of claim 1 , wherein the release button is positioned along a top side of said connector housing.

7. The female connector component of claim 1 , wherein the lock slider comprises visual indicia identifying the direction of movement to the locked position.

8. A quick connect fluid conduit connector, comprising:
a male connector component including a male distal end configured to receive a seal member, a first fluid conduit defined by a first elongate bore extending from said male distal end, and a latch catch groove adjacent to a radially projecting latching flange located proximally from said male distal end; and
the female connector component of claim 1 .

9. The quick connect fluid conduit connector of claim 8 , wherein said latch includes multiple spring arms integrally formed as a unitary piece with said release button for redundantly biasing said latch towards the latched position.

10. The quick connect fluid conduit connector of claim 8 , wherein said receptacle further includes a tapered lead-in bore section extending proximally from said latch plate of said latch, said tapered lead-in bore section configured to reduce frictional engagement between said receptacle and said seal member on said male connector component during insertion or removal of said male distal end relative to said receptacle.

11. The quick connect fluid conduit connector of claim 8 , wherein said opening in said female distal end is bounded by a generally annular periphery, and wherein said male connector component further includes a plurality of lugs located proximal to said latch catch groove that are configured to engage said generally annular periphery of said opening after insertion of said male connector component into said receptacle and configured to at least partially transfer radial or side loads between said male connector component and said female connector component.

12. The quick connect fluid conduit connector of claim 11 , wherein said latch catch groove is delimited on one side by said radially projecting latching flange and delimited on another side by said plurality of lugs.

13. The quick connect fluid conduit connector of claim 11 , wherein said male connector component further includes a radially extending grip flange located adjacent to said plurality of lugs, and wherein said grip flange is positioned to abut said female distal end after insertion of said male connector component into said receptacle to at least partially transfer axial loads between said male connector component and said female connector component.

14. The quick connect fluid conduit connector of claim 8 , wherein said latch plate includes an occluding portion extending into said receptacle in the latched position of said latch to thereby engage said latch catch groove on said male connector component, and said occluding portion includes a tapered lead-in surface facing towards said opening in said female distal end such that insertion of said male distal end into said receptacle automatically forces said occluding portion downward to move said latch into the unlatched position during the insertion.

15. The quick connect fluid conduit connector of claim 8 , wherein said connector housing further includes a contoured button shroud defining said side of said connector housing and surrounding sharp edges of said release button.

16. The quick connect fluid conduit connector of claim 8 , wherein said connector housing further includes a bottom surface facing in an opposite direction from said side including the release button, said bottom surface defining a finger groove projecting inwardly towards said side to provide a grip location opposite said release button.

17. The quick connect fluid conduit connector of claim 16 , wherein said finger groove and said release button each extend in an axial direction along a majority of said connector housing between said female distal end and said second fluid conduit.

18. The quick connect fluid conduit connector of claim 8 , wherein said lock mechanism further includes at least one lock lug extending downwardly from said lock slider and through lug apertures in said release button, and wherein said female connector component further comprises:
a stand

Assignees

• Nordson Corp

Inventors

• Lombardi Iii Francis J
• Sjodin Derrick S

Classifications

• F16L33/30

  comprising parts inside the hoses only (F16L33/24 takes precedence) · CPC title

• A61B5/02233

  Occluders specially adapted therefor (tourniquets A61B17/132) · CPC title

• F16L37/0841 Primary

  by means of a transversally slidable locking member surrounding the tube · CPC title

• F16L2201/20

  Safety or protective couplings · 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