Method and system for collecting, processing, and storing blood

Details Method and system for collecting, processing, and storing blood Method and system for collecting, processing, and storing blood

1995-06-06

1996-11-26

Weiss, John G.

Surgery

Container for blood or body treating material, or means used...

Bag type

604403, 128DIG24, 128DIG27, A61B 1900

Patent

active

055780270

ABSTRACT:
Apparatus and method for collecting, processing, and storing blood components, such as plasma. The method involves collecting the blood component in a flexible storage bag manufactured from ethylene vinyl acetate EVA, having a composition of between about 9% and about 18% vinyl acetate by weight of total EVA co-polymer. The EVA bag is sealed, and the sample is frozen in the bag at a temperature of at least as low as -30.degree. C. to form a substantially solid pellet contained in the storage bag. The bag then is fractured and the pellet is removed in its intact, frozen form. The co-polymer bag may have an inner surface with an etched or embossed pattern of sufficient dimensions to permit removal of the plasma in a frozen state from the storage bag.

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