Connector for packaging containing medical fluids and packaging for medical fluids

US 8,118,802 B2
Filed: 08/18/2010
Issued: 02/21/2012
Est. Priority Date: 05/27/2002
Status: Expired due to Fees

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1. A self-sealing membrane disposed within a connector of a medical fluid container, the self-sealing membrane comprising:

a penetrable section; and

a flange configured to be clamped between a lower section of the connector and an upper section of the connector, the flange having a generally T-shaped cross-sectional profile formed by an inner segment that extends from a boundary of the penetrable section, and an outer segment that extends from a boundary of the inner segment.

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Abstract

The disclosure relates to a connector for packaging containing medical fluids, in particular infusion or transfusion bags, including a tubular connection part for receiving a spike for the withdrawal of fluid, and having a lower opening on the packaging side and an upper opening on the connection side. A self-sealing membrane, which is pierced by the spike, is located in the connection part. The membrane has an upper, annular section leading into a lower, plate-shaped section, said annular section of the membrane surrounding the spike in a sealing manner, when the latter pierces the plate-shaped section. The membrane acts as a guide for the spike and also reseals the connector, once the spike has been removed.

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17 Claims

1. A self-sealing membrane disposed within a connector of a medical fluid container, the self-sealing membrane comprising:
- a penetrable section; and
  
  a flange configured to be clamped between a lower section of the connector and an upper section of the connector, the flange having a generally T-shaped cross-sectional profile formed by an inner segment that extends from a boundary of the penetrable section, and an outer segment that extends from a boundary of the inner segment.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- - 2. The self-sealing membrane of claim 1, wherein the flange is configured to be clamped with elastic deformation between the lower section of the connector and the upper section of the connector.
  - 3. The self-sealing membrane of claim 1, wherein the penetrable section and the flange together have a generally H-shaped cross-sectional profile when the penetrable section is disposed across a fluid passageway defined by the connector.
  - 4. The self-sealing membrane of claim 1, wherein the penetrable section is generally dish-shaped.
  - 5. The self-sealing membrane of claim 1, wherein:
    - the inner segment of the flange is defined by an upper surface area and a lower surface area separated no more than a first distance d_inner; and
      
      the outer segment of the flange is defined by an upper surface area and a lower outer surface area separated no more than a second distance d_outer,wherein the second distance d_outeris greater than the first distance d_inner.
  - 6. The self-sealing membrane of claim 5, wherein the upper surface area of the inner segment and the lower surface area of the inner segment are separated by the first distance d_inner.
  - 7. The self-sealing membrane of claim 5, wherein the upper surface area of the outer segment and the lower surface area of the outer segment are separated by the first distance d_outer.
  - 8. The self-sealing membrane of claim 1, wherein:
    - the inner segment of the flange is defined by a first annular volume; and
      
      the outer segment of the flange is defined by a second annular volume.

9. A connector for a medical fluid container, the connector comprising:
- a first section having a peripheral groove on a portion of an internal wall; and
  
  a second section having a peripheral projection on a portion of an external wall,wherein each of the first section of the connector and the second section of the connector is sized and dimensioned to;
  
  achieve a snap-in effect when the peripheral projection of the second section is disposed within the peripheral groove of the first section, andaccommodate a self-sealing membrane having a generally H-shaped cross-sectional profile.
- View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
- - 10. The connector of claim 9, wherein the self-sealing membrane includes a flange that has a generally T-shaped cross-sectional profile.
  - 11. The connector of claim 9, wherein the self-sealing membrane includes a flange that is formed by:
    - an inner segment that is defined by an upper surface area and a lower surface area separated no more than a first distance d_inner; and
      
      an outer segment that is defined by an upper surface area and a lower outer surface area separated no more than a second distance d_outer,wherein the second distance d_outeris greater than the first distance d_inner.
  - 12. The connector of claim 9, wherein the self-sealing membrane includes a flange that is formed by and inner annular volume and an outer annular volume.
  - 13. The connector of claim 9, wherein the self-sealing membrane includes a penetrable section that is disposed at an intersection of the first section of the connector and the second section of the connector.
  - 14. The connector of claim 13, wherein the penetrable section is generally dish-shaped.
  - 15. The connector of claim 9, wherein the self-sealing membrane includes a penetrable section that is disposed across a fluid passageway defined by the connector.
  - 16. The connector of claim 15, wherein the penetrable section is generally dish-shaped.
  - 17. The connector of claim 9, wherein the self-sealing membrane is held clamped with elastic deformation between the first section of the connector and the second section of the connector.

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Current Assignee
Fresenius KABI Deutschland GmbH (Else Kröner-Fresenius-Stiftung)
Original Assignee
Fresenius KABI Deutschland GmbH (Else Kröner-Fresenius-Stiftung)
Inventors
Brandenburger, Torsten, Rahimy, Ismael
Primary Examiner(s)
Zalukaeva, Tatyana
Assistant Examiner(s)
Treyger, Ilya

Application Number

US12/858,627
Publication Number

US 20110022024A1
Time in Patent Office

552 Days
Field of Search

604408-411
US Class Current

604/411
CPC Class Codes

A61J 1/10   Bag-type containers

A61J 1/1406   Septums, pierceable membranes

A61J 1/1475   Inlet or outlet ports

A61J 1/2006   Piercing means

Connector for packaging containing medical fluids and packaging for medical fluids

First Claim

1 Assignment

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Abstract

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17 Claims

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Connector for packaging containing medical fluids and packaging for medical fluids

First Claim

1 Assignment

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Abstract

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17 Claims

Specification

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