Claims for Patent: 8,162,915

Summary for Patent: 8,162,915

Title:	Connector for packings containing medical liquids, and corresponding packing for medical liquids
Abstract:	A connector for packings containing medical liquids, particularly infusion, transfusion or enteral bags, comprises a connecting part (1) for accommodating a spike for drawing out the liquid and comprises a closure part (3) that closes the passage (2) inside the connecting part (1). The connecting part (1) has an elastically deformable pinching off part (4) provided in the form of a tubular section with a non-circular cross-section. A base part (5), which widens on both sides is adjoined to said pinching off part (4) and can be integrated in the packing. During manufacturing, the packing is filled with liquid via the connecting part. After filling, the pinching off part is pressed together whereby preventing liquid from escaping. Afterwards, the closure part is placed onto the connecting part. The manufacturing of the packing is simplified by virtue of the fact that an additional tube for connecting the connector and packing is rendered unnecessary.
Inventor(s):	Brandenburger; Torsten (Niddatal, DE), Heilmann; Klaus (St. Wendel, DE), Knierbein; Bernd (Neu-Anspach, DE)
Assignee:	Fresenius Kabi Deutschland GmbH (Bad Homburg, DE)
Application Number:	10/550,477
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 8,162,915
Patent Claims:	1. A connector for packings containing medical liquids, particularly infusion, transfusion or enteral bags, comprising: a connecting part that is an injection-molded component with a passage to accommodate a rod or a spike for filling or withdrawal of liquid, wherein the connecting part comprises, an elastically deformable pinching-off part, which re-assumes its original shape again after being pinched by a pinching device, and is designed as a tubular portion with a noncircular axial cross section that is different in two mutually perpendicular directions, and a base part that merges into the pinching-off part, wherein the base part widens to both sides and can be integrated in the packing, and wherein the pinching-off part comprises the same polymer as the base part; and a closure part which can be fitted onto the connecting part and closes the passage in the connecting part. 2. The connector as claimed in claim 1, characterized in that the closure part and the connecting part are secured with a snap fit. 3. The connector as claimed in claim 1 or 2, characterized in that a self-sealing membrane is arranged between the connecting part and the closure part and can be pierced by the spike for withdrawal of the liquid. 4. The connector as claimed in claim 3, characterized in that the self-sealing membrane is held clamped with elastic deformation between the connecting part and the closure part. 5. The connector as claimed in claim 1, characterized in that the closure part has a cap-shaped bottom part which is adjoined, via an annular break zone, by a top part that can be broken off. 6. The connector as claimed in claim 5, characterized in that the top part that can be broken off is designed as a flat grip piece. 7. The connector as claimed in claim 6, characterized in that the cap-shaped bottom part and/or the flat grip piece is identified by an arrow indicating the direction of flow. 8. The connector as claimed in claim 7, characterized in that the arrow is designed as a recess and/or as a raised structure. 9. The connector as claimed in claim 1, characterized in that the base part is designed in the shape of a boat. 10. A packing for medical liquids, particularly an infusion, transfusion or enteral bag, having at least one connector as claimed in claim 1. 11. A connector for packings containing medical liquids, comprising: a connecting part that is an injection-molded component with a passage to accommodate a rod or a spike for filling or withdrawal of liquid, wherein the connecting part comprises, an elastically deformable pinching-off part, which re-assumes its original shape again after being pinched by a pinching device, and is designed as a tubular portion with a noncircular axial cross section that is different in two mutually perpendicular directions, and a base part that merges into the pinching-off part, wherein the base part widens to both sides and can be integrated in the packing, and wherein the pinching-off part comprises the same polymer as the base part; and a closure part which can be fitted onto the connecting part and closes the passage in the connecting part. 12. The connector as claimed in claim 11, wherein the closure part and the connecting part are secured with a snap fit. 13. The connector as claimed in claim 11 or 12, wherein a self-sealing membrane is arranged between the connecting part and the closure part and can be pierced by the spike for withdrawal of the liquid. 14. The connector as claimed in claim 13, wherein the self-sealing membrane is held clamped with elastic deformation between the connecting part and the closure part. 15. The connector as claimed in claim 11, wherein the closure part has a cap-shaped bottom part which is adjoined, via an annular break zone, by a top part that can be broken off. 16. The connector as claimed in claim 15, wherein the top part that can be broken off is designed as a flat grip piece. 17. The connector as claimed in claim 16, wherein the cap-shaped bottom part and/or the flat grip piece is identified by an arrow indicating the direction of flow. 18. The connector as claimed in claim 17, wherein the arrow is designed as a recess and/or as a raised structure. 19. The connector as claimed in claim 11, wherein the base part is designed in the shape of a boat. 20. A packing for medical liquids having at least one connector as claimed in claim 11.