Systems and methods for reducing leukocytes in cellular...

A - Human Necessities – 61 – M

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A61M 1/38 (2006.01) A61M 1/02 (2006.01) A61M 1/36 (2006.01) B01D 21/26 (2006.01) B04B 5/00 (2006.01) B04B 5/04 (2006.01) A61M 1/30 (2006.01)

Patent

CA 2143830

Systems and methods are provided for reducing the number of leukocytes in cellular products like platelets collected in an on-line or continuous blood separation processes. The systems include first separation element (12) for separating blood into a suspension of platelets, second separation element (14) for reducing the number of leukocytes in a suspension of platelets, third separation element (16) for separating a suspension of platelets into a platelet-rich concentrate and a control means for operating separation elements (12, 14, 16) in various modes. The methods for obtaining a high quality blood product suited for therapeutic use are disclosed.

L'invention se rapporte à des systèmes et des procédés de réduction du nombre des leucocytes dans des produits cellulaires, tels que des plaquettes recueillies dans des procédés de séparation du sang en ligne ou continus. Les systèmes comprennent un premier élément de séparation (12) du sang en une suspension de plaquettes, un deuxième élément de séparation (14) visant à réduire le nombre des leucocytes dans une suspension de plaquettes, un troisième élément de séparation (16) séparant une suspension de plaquettes en un concentré riche en plaquettes, et un moyen de commande visant à faire fonctionner les éléments de séparation (12, 14, 16) dans différents modes. Les procédés visant à obtenir un produit sanguin de haute qualité sont appropriés pour être utilisés en thérapie.

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