Blood collection method

专利名称：Blood collection method发明人：Richard L. Columbus,Susan M.

Atwood,Deborah P. Freyler,Harvey J. Palmer

申请号：US07/524401申请日：19900516公开号：US05032288A公开日：19910716

摘要：A method of use is disclosed of a device that causes phase separation of wholeblood, using much lower centrifugal forces. As a result, leukocytes are separated fromblood cells having specific gravities of 1. 09 g/ml or higher. The method preferably uses aseparation chamber arranged so that its long dimension or axis is parallel, notperpendicular, to the spin axis, and a valve that allows automatic removal of the ligherphase(s).

In one aspect, the method separates a lighter phase from a heavier phase, for

example, lymphocytes from whole blood, using a centrifugal force of reduced amount. Inanother aspect, DNA is extracted readily from the separated lighter phase since it is lesslikely that the lighter phase will be contaminated by erythrocytes as occurs inconventional separation techniques.

申请人：EASTMAN KODAK COMPANY

代理人：Dana M. Schmidt

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