Dual chamber container and process for its filling up

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

Reexamination Certificate

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C604S085000, C604S089000

Reexamination Certificate

active

08002734

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.

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