Storage of materials

A - Human Necessities – 01 – N

Patent

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A01N 1/02 (2006.01) A61K 35/16 (2006.01)

Patent

CA 2251333

Blood plasma is preserved by drying to an amorphous state, with a glass transition temperature of at least 15 ~C. The glass transition temperature of dried plasma is higher than would be predicted. Consequently, although a carrier material may be mixed with the plasma and included in the dried glassy composition, the weight of plasma solids can exceed the weight of any carrier material. Because admixed carrier can be absent or in low amount, the dried composition can be a unit dose requiring only rehydration prior to transfusion.

L'invention se rapporte au stockage de plasma sanguin, séché jusqu'à un état amorphe, sa température de transition vitreuse étant d'au moins 15 ·C. La température de transition vitreuse du plasma sanguin séché est plus élevée que prévu. Par conséquent, même si on mélange un matériau porteur au plasma et si on l'inclut dans la composition vitreuse séchée, le poids du plasma solidifié peut dépasser le poids du matériau porteur, quel que soit ce dernier. Etant donné qu'un matériau porteur ajouté peut n'être présent qu'en faibles quantités ou être absent, la composition séchée peut prendre la forme d'une dose unitaire qu'il faut seulement réhydrater avant de transfuser.

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