Multiple layer polymeric structure

Details Multiple layer polymeric structure Multiple layer polymeric structure

2005-11-18

2008-10-07

Ahmed, Sheeba (Department: 1794)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C428S035400, C428S213000

Reexamination Certificate

active

07431995

ABSTRACT:
The present invention provides a receptacle (30) for a therapeutic fluid susceptible to deterioration on exposure to a gas such as oxygen or carbon dioxide. The receptacle (30) has walls of sheet material each including at least one layer forming a barrier essentially impermeable to such gas, and a seal sealing the walls together in a region thereof. A transfer tube (40) is sealed in the seal having a proximal end in the receptacle (30), a distal end accessible from outside the receptacle (30), a flow passage (56) extending between said proximal and distal ends, and a closure (54) blocking flow through the flow passage (56) adapted to be pierced by a tubular needle for transfer of therapeutic through the needle. The transfer tube (40) and closure (54) are essentially impermeable to said gas.

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