Connector for medical liquid-containing packages and medical liquid-containing packages

• US 7,857,802 B2
• Filed: 10/15/2004
• Issued: 12/28/2010
• Est. Priority Date: 10/15/2003
• Status: Active Grant

• 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): Deak; Leslie R
• Application Number:
  US10/575,690
• Publication Number:
  US 20070060902A1
• Time in Patent Office: 2,265 Days
• Field of Search: 604/403, 604/408, 604/415
• US Class Current: 604/415
• CPC Class Codes: A61J 1/10 Bag-type containers
• CPC Class Codes: A61M 39/045 pre-slit to be pierced by blunt instrument
• CPC Class Codes: A61M 39/20 Closure caps or plugs for connectors or open ends of tubes
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24

Abstract

The invention relates to a connector for medical liquid-containing packages, in particular to infusion or transfusion bags comprising a connection element (1) provided with a channel-shaped opening (1c) in which a self-sealing membrane (8) is arranged. A breakable part (17) which is connected to the connection piece closes the channel-shaped opening. Above the membrane (8), said connection element is embodied in the form a connection piece (13) comprising an internal cone (14) and external thread (15), the membrane (8) being sealed for receiving a syringe cone shaft. The inventive connector makes it possible to inject an active substance by means of a conventional Luer lock syringe devoid of an injection cannula (needle).

Claims

1. A connector for medical liquid-containing packages, in particular infusion or transfusion bags, comprising:

a connection part, which has a channel-shaped recess in which a self-sealing membrane is arranged, whereby the channel-shaped recess has a package-side lower opening and a connection-side upper opening;

a break-off part, which closes the channel-shaped recess and is connected to the connection part above the connection-side opening;

wherein the connection part comprises a connection piece extending above the self-sealing membrane, whereby the self-sealing membrane is slit so as to receive the conical shaft of a syringe in a sealing fashion and wherein the connection piece and the self-sealing membrane of the connection part are designed and arranged in such a way that the conical shaft of a syringe inserted into the connection-side opening opens the slit membrane, but does not penetrate the slit of the self-sealing membrane.

2. The connector according to claim 1, wherein the connection piece of the connection part is designed as a female Luer connector with an internal cone.

3. The connector according to claim 2, wherein the Luer connector of the connection part is designed as a female Luer lock connector with an internal cone and an external thread.

4. The connector according to claim 1, wherein the break-off part is connected via an annular rupture zone to the connection part.

5. The connector according to claim 1, wherein the connection part comprises a lower section and an upper section, whereby the sections are fixed in a snap-in fashion.

6. The connector according to claim 5, wherein the self-sealing membrane is held clamped between the lower and upper section.

7. The connector according to claim 1, wherein the self-sealing membrane has a lower annular portion and an upper plate-shaped portion, which has a mould-shaped recess.

8. The connector according to claim 7, wherein the upper plate-shaped portion is followed by a middle intermediate piece, which transforms into the lower annular portion of the self-sealing membrane.

9. The connector according to claim 7, wherein the annular portion of the self-sealing membrane is clamped between the lower and upper section of the connection part.

10. The connector according to claim 7, wherein the connection part has a shoulder projecting inwards, on which the annular portion of the self-sealing membrane rests.

11. The connector according to claim 7, wherein the connection part has a shoulder projecting inwards, on which the plate-shaped portion of the self-sealing membrane rests.

12. The connector according to claim 11, wherein the plate-shaped portion of the self-sealing membrane is prestressed in a spring-like manner against the shoulder projecting inwards.

13. The connector according to claim 7, wherein the annular portion of the self-sealing membrane is connected in a keyed manner to the lower section of the connection part.

14. The connector according to claim 7, wherein the inner diameter of the annular portion of the self-sealing membrane is smaller than the inner diameter of the channel-shaped recess of the connection part.

15. The connector according to claim 1, wherein the break-off part is designed as a flat grip.

16. A package for medical liquids, in particular infusion or transfusion bags, with a connector according to claim 1.

17. A connector for medical liquid-containing packages, in particular infusion or transfusion bags, comprising:

a connection part, which has a channel-shaped recess in which a self-sealing membrane is arranged, whereby the channel-shaped recess has a package-side lower opening and a connection-side upper opening;

a break-off part, which closes the channel-shaped recess and is connected to the connection part above the connection-side opening;

wherein the connection part comprises a connection piece having an internal cone and extending above the self-sealing membrane, whereby the self-sealing membrane is slit so as to receive the conical shaft of a syringe in a sealing fashion.