Separator For Blood Cells

Press, Volume CIV, Issue 30934, 15 December 1965, Page 29

Separator For Blood Cells

<N.Z.rjl.-lttvter> BETHSADA (Maryland) The Natteoal Caneer Inatttnte has initiated an experimental Hood eell separator which automatically separates whole bleed into its major fractions. Developed jointly by the National Cancer Institute and the International Business Machines Corporation, the new instrument permits for the first time the collection of a high quantity of certain white blood cells from a single donor. The most advanced model can accept blood continuously from a donor, whirl it in a centrifuge to separate the three major components—plasma, red blood cells and white blood cells—and

return uneeded plasma and red blood cells to the donor. The spinning bowl of the centrifuge separates the blood components because of their differing densities. Heavier components are forced toward the rim of the bowl while lighter elements, such as the white blood cells, settle nearer the centreDr. Seymour Perry, chief of the medical branch and project officer for the National Cancer Institute, indicated that ordinary methods of blood separation are lengthy, single-batched procedures, limited to processing small volumes of blood which can be removed from a normal donor only infrequently.

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