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

• US 20070060902A1
• Filed: 10/15/2004
• Published: 03/15/2007
• 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
• Granted Patent: US 7,857,802 B2
• Time in Patent Office: Days
• US Class Current: 604/403
• 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

1-17. -17. (canceled)

18. A connector for medical liquid-containing packages, in particular infusion or transfusion bags, with

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;

characterized in that the connection part above the self-sealing membrane is designed as a connection piece with an internal cone, whereby the self-sealing membrane is slit so as to receive the conical shaft of a syringe in a sealing fashion.

19. The connector according to claim 18, characterized in that the connection piece of the connection part is designed as a female Luer connector with an internal cone.

20. The connector according to claim 19, characterized in that the Luer connector of the connection part is designed as a female Luer lock connector with an internal cone and an external thread.

21. The connector according to claim 18, characterized in that the break-off part is connected via an annular rupture zone to the connection part.

22. The connector according to claim 18, characterized in that the connection part comprises a lower section and an upper section, whereby the sections are fixed in a snap-in fashion.

23. The connector according to claim 22, characterized in that the self-sealing membrane is held clamped between the lower and upper section.

24. The connector according to claim 18, characterized in that the self-sealing membrane has a lower annular portion and an upper plate-shaped portion, which has a mould-shaped recess.

25. The connector according to claim 24, characterized in that the upper plate-shaped portion is followed by a middle intermediate piece, which transforms into the lower annular portion of the self-sealing membrane.

26. The connector according to claim 24, characterized in that the annular portion of the self-sealing membrane is clamped between the lower and upper section of the connection part.

27. The connector according to claim 24, characterized in that the connection part has a shoulder projecting inwards, on which the annular portion of the self-sealing membrane rests.

28. The connector according to claim 24, characterized in that the connection part has a shoulder projecting inwards, on which the plate-shaped portion of the self-sealing membrane rests.

29. The connector according to claim 28, characterized in that the plate-shaped portion of the self-sealing membrane is prestressed in a spring-like manner against the shoulder projecting inwards.

30. The connector according to claim 24, characterized in that the annular portion of the self-sealing membrane is connected in a keyed manner to the lower section of the connection part.

31. The connector according to claim 24, characterized in that 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.

32. The connector according to claim 18, characterized in that the internal cone of 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 internal cone opens the slit membrane, but does not penetrate it.

33. The connector according to claim 18, characterized in that the break-off part is designed as a flat grip.

34. A package for medical liquids, in particular infusion or transfusion bags, with a connector according to claim 18.