Collection tubes apparatus, systems, and methods

G - Physics – 01 – N

Patent

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G01N 1/28 (2006.01) B01D 21/26 (2006.01) B01L 3/00 (2006.01) B04B 7/08 (2006.01) G01N 33/48 (2006.01)

Patent

CA 2704356

Methods of producing collection tubes are presented. The methods include providing a separator substance that can rapidly polymerize in a short time to a desired hardness and disposing the separator substance within the lumen of the tube. The separator substance is formulated to have a density between an average density of a serum fraction of whole blood and a cell-containing fraction of whole blood, and to be flowable with whole blood. Upon centrifugation of a tube having blood, the separator substance forms a barrier between the whole blood fractions. The barrier rapidly hardens forming a solid barrier when triggered by a suitable energy source.

L'invention propose des procédés de fabrication de tubes de prélèvement. Les procédés consistent à se procurer une substance séparatrice qui peut être rapidement polymérisée en un court laps de temps à la dureté voulue, et à disposer la substance séparatrice dans la lumière du tube. La substance séparatrice est formulée de façon à présenter une densité entre une densité moyenne d'une fraction de sérum de sang total et une fraction contenant des cellules de sang total, et pour être capable de s'écouler avec le sang total. Lors de la centrifugation d'un tube contenant du sang, la substance séparatrice forme une barrière entre les fractions de sang total. La barrière durcit rapidement, formant une barrière solide lorsqu'elle est déclenchée par une source d'énergie appropriée.

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