Fluid transfer assemblies and related methods

Patent metadata

Field	Value
Publication number	US-9259563-B2
Application number	US-40659009-A
Country	US
Kind code	B2
Filing date	Mar 18, 2009
Priority date	Mar 18, 2008
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

An assembly includes a first polymeric connector having a first passageway and a second passageway fixed relative to the first passageway; a first polymeric conduit having a third passageway in fluid communication with the first passageway; and a polymeric member extending over a gap between the first connector and the first conduit and at least portions of outer surfaces of the first connector and the first conduit. The first passageway is in fluid communication with the third passageway.

First claim

What is claimed is:

1. An assembly, comprising:
a first polymeric connector having a first passageway aligned in a first direction and a second passageway aligned in a second direction, wherein the first direction is fixed relative to the second direction;
a first flexible, polymeric conduit having a conduit passageway in fluid communication with the first passageway of the first polymeric connector, wherein the first flexible, polymeric conduit includes an elastomer, a thermoplastic elastomer, an engineering thermoplastic elastomer, or any combination thereof; and
a first polymeric member extending into a gap defined between the first polymeric connector and the first polymeric conduit and extending over said gap and at least portions of outer surfaces of the first polymeric connector and the first polymeric conduit, wherein the first polymeric member, the first polymeric conduit and the first polymeric connector are aligned to provide a substantially smooth, seamless transition between an inner diameter of the first polymeric connector and an inner diameter of the first polymeric conduit.

2. The assembly of claim 1 , wherein a portion of the first polymeric member extends over said gap and the portion of the polymeric member extending over the gap has a substantially content outer diameter.

3. The assembly of claim 1 , wherein the first polymeric connector comprises three or more end openings.

4. The assembly of claim 1 , further comprising a second polymeric conduit having a conduit passageway attached to the first polymeric connector with a second polymeric member extending over at least portions of outer surfaces of the first polymeric connector and the second polymeric conduit, the second passageway of the first polymeric connector being in fluid communication with the conduit passageway of the second polymeric conduit.

5. The assembly of claim 1 , further comprising a second polymeric connector having a fourth passageway and a fifth passageway fixed relative to the fourth passageway attached to the first polymeric connector with a second polymeric member extending over at least portions of outer surfaces of the first polymeric connector and the second polymeric connector, the second passageway being in fluid communication with the fourth passageway.

6. The assembly of claim 1 , wherein the first polymeric connector, the first polymeric conduit, and the first polymeric member comprise one or more thermoplastic elastomers.

7. The assembly of claim 1 , wherein an inner diameter of a lumen of the polymeric member at the gap is substantially the same as the inner diameter of the first polymeric conduit and the first polymeric connector.

8. The assembly of claim 1 , having a burst strength substantially equivalent to a burst strength of the first polymeric conduit.

9. The assembly of claim 1 , wherein the first polymeric member contacts the first polymeric connector and the first polymeric conduit.

10. The assembly of claim 1 , wherein the flexible, polymeric conduit is a flexible body having the first and the second passageways.

11. The assembly of claim 1 , wherein the first polymeric connector includes a different composition than a composition of the first polymeric member.

12. A method of attaching a first polymeric connector having a first passageway aligned in a first direction and a second passageway aligned in a second direction and fixed relative to the first passageway, and a first flexible, polymeric conduit having a third passageway, the method comprising:
attaching the first polymeric connector to the first flexible, polymeric conduit with a first polymeric member extending over at least portions of outer surfaces of the first connector and the first conduit, the first passageway being in fluid communication with the third passageway,
wherein the first polymeric member extends into a gap defined between ends of the first polymeric connector and the first polymeric conduit, and wherein the first polymeric conduit includes an elastomer, a thermoplastic elastomer, an engineering thermoplastic elastomer, or any combination thereof and,
wherein the first polymeric member, the first polymeric conduit and the first polymeric connector are aligned to provide a substantially smooth, seamless transition between an inner diameter of the first polymeric connector and an inner diameter of the first polymeric conduit.

13. The method of claim 12 , wherein the first polymeric connector and the first polymeric conduit have inner widths or diameters that are substantially the same.

14. The method of claim 12 , wherein at least portions of the first and third passageways are substantially flush.

15. The method of claim 12 , wherein the first connector comprises three or more end openings.

16. The method of claim 12 , comprising injection molding the first polymeric member.

17. The method of claim 16 wherein two or more polymeric members are molded simultaneously.

18. The method of claim 12 , further comprising attaching a second polymeric conduit having a fourth passageway to the first polymeric connector with a second polymeric member extending over at least portions of outer surfaces of the first polymeric connector and the second polymeric conduit, the second passageway being in fluid communication with the fourth passageway.

19. The method of claim 12 , further comprising attaching a second polymeric connector having a fourth passageway and a fifth passageway fixed relative to the fourth passageway to the first polymeric connector with a second polymeric member extending over at least portions of outer surfaces of the first polymeric connector and the second polymeric connector, the second passageway being in fluid communication with the fourth passageway.

20. The method of claim 12 , wherein the first polymeric connector, the first polymeric conduit, and the first polymeric member comprise one or more thermoplastic elastomers.

Assignees

• Klingel Jr Robert R
• Stadt Gerald L
• Saint Gobain Performance Plast

Inventors

• Klingel Jr Robert R
• Stadt Gerald L

Classifications

• F16L47/32

  Branch units, e.g. made in one piece, welded, riveted · CPC title

• A61M39/10 Primary

  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

• A61M39/08

  Tubes; Storage means specially adapted therefor · CPC title

• F16L47/20

  based principally on specific properties of plastics · CPC title

• B29C45/14614

  Joining tubular articles · CPC title