Blood cell separating system

G - Physics – 01 – N

Patent

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Details

G01N 33/48 (2006.01) G01N 33/49 (2006.01) G01N 33/537 (2006.01) G01N 33/569 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2469878

A blood cell separating system is offered for precisely separating and concentrating rare fetal nucleated cells intermixed in the blood of a pregnant woman, to conveniently obtain test preparations capable of being used for prenatal chromosomal/genetic diagnosis. A blood cell separating system is characterized by comprising (1) a primary separating device for removing mainly non-nucleated erythrocytes, leukocytes and platelets from blood samples taken from a pregnant woman to obtain a primary separated sample, (2) a secondary separating device for using a carbohydrate-lectin method to remove residual non-nucleated erythrocytes and leukocytes from the primary separated sample obtained by the primary separating device to obtain a secondary separated sample with concentrated fetal nucleated cells, and (3) preparing device for preparing the secondary separated sample obtained by the secondary separating device.

L'invention concerne un système de séparation de cellules sanguines permettant de séparer de manière précise des cellules nucléaires rares d'origine embryonnaire contenues dans le sang d'une femme enceinte, et de concentrer lesdites cellules, de sorte à obtenir des spécimens de test pouvant être utilisés dans le diagnostic chromosomique/génique prénatal. Le système de séparation de cellules sanguines selon l'invention comprend: (1) une unité de séparation destinée à éliminer les globules rouges, les globules blancs et les plaquettes anucléés d'un spécimen sanguin prélevé sur une femme enceinte, de sorte à obtenir un spécimen primaire; (2) une unité de séparation secondaire destinée à éliminer les globules rouges et les globules blancs anucléés restant dans le spécimen primaire obtenu par l'unité susmentionnée, au moyen d'un procédé chaîne glucidique-lectines, de sorte à obtenir un spécimen secondaire, ce spécimen contenant des cellules embryonnaires nucléées concentrées; et (3) une unité d'échantillonnage destinée à échantillonner le spécimen secondaire obtenu par l'unité de séparation secondaire.

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