B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 61/28 (2006.01) A61M 1/36 (2006.01) B01D 61/32 (2006.01) A61M 1/30 (2006.01)
Patent
CA 2064712
Method and apparatus for machine separation of blood and blood components that utilizes improved administration of anticoagulant to the red cell suspension output. Anticoagulant (20) is added to incoming whole blood (13) in an amount sufficient to prevent clotting of the whole blood in the flow path upstream of the blood component separator (46), but in an amount insufficient to prevent clotting of the red cell suspension created by the separator. Anticoagulant (20) is added to the red cell suspension downstream (50) of the separator (46) in order to prevent clotting. By adding an additional aliquot of anticoagulant to the red cell suspension, the amount of anticoagulant added to whole blood before separation can be reduced or eliminated, resulting in an increase in platelet yield during the blood component separation step.
Procédé et appareil de séparation par machine de sang et de constituants du sang consistant en l'administration améliorée d'anticoagulant à la sortie de suspension de globules rouges. On ajoute un anticoagulant (20) au sang total entrant (13) en une dose suffisante pour empêcher la coagulation du sang total dans le chemin d'écoulement en amont du séparateur (46) de constituants du sang, mais en une dose insuffisante pour empêcher la coagulation de la suspension des globules rouges créée par le séparateur. On ajoute un anticoagulant (20) à la suspension de globules rouges en aval (50) du séparateur (46) afin d'empêcher la coagulation. Le fait d'ajouter un aliquot supplémentaire d'anticoagulant à la suspension de globules rouges permet de réduire ou d'éliminer la dose d'anticoagulant ajoutée au sang total avant la séparation, ce qui a pour effet d'augmenter le rendement plaquettaire pendant l'étape de séparation des constituants du sang.
Baxter International Inc.
Sim & Mcburney
LandOfFree
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