Patent ID: 6365104
Filing Date: 2002-04-02
Classification: B01L,G01N,Y10T

Abstract:
An assembly for detecting the presence or absence of rare events in a sample of centrifuged anticoagulated whole blood which assembly is postioned on a microscopal instrument, said assembly comprising:a) a transparent blood sample tube; b) an insert in said blood sample tube, which insert is operative to create a volumetrically restricted zone in said sample tube, which volumetrically restricted zone will be partially occupied by low density erythrocytes contained in the centrifuged blood sample; b) a closure for sealing one end of said tube, said closure including an inner plug portion which extends into a bore in said tube, and an outer sheath portion which fits tightly about an outer surface of said tube; and c) said outer sheath portion including means for identifying an extant rotational position of said tube relative to the microscopal instrument.