Blood processing systems which monitor optical densities

Details Blood processing systems which monitor optical densities Blood processing systems which monitor optical densities

B - Operations, Transporting

01

D

B01D 17/12 (2006.01) B01D 17/02 (2006.01) B01D 21/26 (2006.01)

Patent

CA 2386482

Blood processing systems and methods separate blood into constituents including a plasma constituent that includes a platelet volume. The systems and methods detect the optical density of the plasma constituent and generate a first output indicative of the optical density. A processing element integrates the first output relative to the volume of plasma constituent and generates an integrated output. The integrated output correlates to the platelet volume. A second processing element (324) generates an output based, at least in part, upon the integrated output, which depicts a value indicating a blood volume that needs to be processed to obtain a desired platelet volume.

L'invention concerne des systèmes de traitement du sang et des méthodes permettant de séparer le sang en ses constituants, notamment un constituant plasma qui contient un certain volume de plaquettes. Ces systèmes et méthodes permettent de détecter la densité optique du constituant plasma, et produisent une première sortie indicatrice de ladite densité optique. Un élément de traitement intègre la première sortie relative au volume du constituant plasma, et produit une sortie intégrée. Ladite sortie intégrée est corrélée avec le volume de plaquettes. Un second élément de traitement (324) produit une sortie basée, au moins en partie, sur la sortie intégrée, qui comporte une valeur indiquant le volume de sang à traiter pour obtenir le volume de plaquettes désiré.

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