Infusion hub assembly and fluid line disconnect system

• US 7,744,568 B2
• Filed: 03/26/2007
• Issued: 06/29/2010
• Est. Priority Date: 03/04/2001
• Status: Expired due to Fees

• Current Assignee: Ypsomed AG (Ypsomed Holding AG)
• Original Assignee: ICU Medical Incorporated
• Inventors: Douglas, Joel S., Hugo, Robert L., Zhang, Cynthia
• Primary Examiner(s): Sirmons; Kevin C
• Assistant Examiner(s): Mehta; Bhisma
• Application Number:
  US11/691,059
• Publication Number:
  US 20080312598A1
• Time in Patent Office: 1,191 Days
• Field of Search: 604/164.01, 604/164.11, 604/165.04, 60416701-16705, 604/533, 604/534, 604/539
• US Class Current: 604/167.01
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 39/14 for connecting tubes having sealed ends needle sets A61M5/162; having valves closing automatically on disconnection of line A61M39/26
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An infusion hub assembly, comprising: a hub received in a hole in a wing, the hub having a bore passing therethrough, with an upper portion of the circular hub having an attachment surface thereon; an infusion cannula extending downwardly away from the wing, the infusion cannula being in fluid communication with the bore passing through the hub; a cover having a bore passing therethrough and having an inner attachment surface adapted to mate with the attachment surface on the upper portion of the hub; and a septum positioned in alignment with the bore passing through the cover.

An infusion connector set comprising: a first connector; a septum received in the first connector; a second connector; a septum received in the second connector; and a flanged needle which penetrates both the septums in the first and second connectors when the first and second connectors are connected together.

Claims

1. An infusion hub assembly, comprising:

a wing having a hole passing therethrough;

a circular hub received in the hole in the wing, the hub having a bore passing therethrough, with an upper portion of the circular hub having an attachment surface thereon;

an infusion cannula extending downwardly away from the wing, the infusion cannula being in fluid communication with the bore passing through the hub;

a cover having a bore passing therethrough and having an inner attachment surface adapted to mate with the attachment surface on the upper portion of the hub; and

a septum positioned in alignment with the bore passing through the cover; and

a housing with a downwardly pointing housing cannula and an infusion tube, the housing being attachable to the hub such that the housing cannula extends through the septum, and the housing and at least a portion of the infusion tube are rotatable with respect to the hub while permitting infusion from the infusion tube through the housing cannula into the infusion cannula;

wherein the cover further comprises an outer attachment surface, the housing has an attachment surface adapted to mate with the outer attachment surface; and

the attachment surface on the housing comprises a recess extending circumferentially around an internal surface of the housing.

2. The assembly of claim 1, wherein the upper portion of the hub is circular.

3. The assembly of claim 2, wherein the attachment surface on the upper portion of the circular hub comprises a lip extending circumferentially therearound.

4. The assembly of claim 1, wherein an underside surface of the wing comprises an adhesive layer.

5. The assembly of claim 1, wherein the hole in the wing is a stepped hole and the hub has a stepped outer dimension which fits into the stepped hole in the wing.

6. The assembly of claim 5, wherein both the stepped hole and the hub are circular and the hub has a stepped outer diameter.

7. The assembly of claim 1, further comprising:

a needle guide received in the bore of the hub.

8. The assembly of claim 7, wherein the needle guide is funnel shaped.

9. The assembly of claim 7, wherein the infusion cannula is attached to the needle guide.

10. The assembly of claim 1, wherein an upper portion of the cover is circular.

11. The assembly of claim 1, wherein the inner attachment surface on the cover comprises a recess extending circumferentially around an internal surface of the cover.

12. The assembly of claim 1, wherein the outer attachment surface on the cover comprises a lip extending circumferentially therearound.

13. The assembly of claim 12, further comprising:

a needle guide received in the bore of the hub, wherein the septum is received into the needle guide when the cover is attached to the hub.

14. The assembly of claim 12, further comprising:

an insertion needle configured to pass removably through the bore in the cover, the septum and the infusion cannula prior to attachment of the housing to the hub, wherein a distal end of the insertion needle extends downwardly out of a distal end of the infusion cannula when the insertion needle is fully advanced through the bore in the cover, the septum and the infusion cannula.

15. The assembly of claim 1, wherein the housing has a radial bore.

16. The assembly of claim 15, wherein:

the housing cannula passes at least partially through the radial bore in the housing, wherein a first end of the housing cannula is positioned to extend downwardly into the bores in the cover and hub when the housing is attached to the cover.

17. The assembly of claim 16, wherein:

the infusion tube is received into the radial bore of the housing.