Dual chamber container and process for its filling up

US8002734B2 · kind B2 · utility

Assignee

• Boehringer Ingelheim International GmbH · DE

Inventors

• Stefan Bassarab · Biberach, DE
• Alexander Bauer · Rosenheim, DE
• Nicole Denkinger · Biberach, DE
• Patrick Garidel · Norderstedt, DE
• Markus Hemminger · Biberach, DE
• Hans-Hoachim Kern · Mittelbiberach, DE
• Andreas Langer · Munich, DE
• Ingo Presser · Biberach, DE

Key dates

• Filing date: Aug 14, 2006
• Grant date: Aug 23, 2011
• Expiry date: Aug 14, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/3123
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A double chamber container for holding and combining a solid lyophilizate and a liquid reconstituting medium, comprising a cylindrical body with a closure at each of the two ends, an upper displaceable closure at the reconstituting medium end, and a lower closure at the lyophilizate end, a separating stopper that can be pushed in the cylindrical body and act as a seal between the upper chamber and the lower chamber, and a bypass arranged underneath the separating stopper, with a length L that is preferably greater than the height H of the separating stopper, wherein at the upper end in the wall of the cylindrical body or in the separating stopper means are provided that allow partial connection of the interior of the cylindrical body to the environment during the lyophilization.