Sample mixer and spreader

Details Sample mixer and spreader Sample mixer and spreader

G - Physics

02

B

32/39, 117/73

G02B 21/34 (2006.01) G01N 1/28 (2006.01)

Patent

CA 1071940

ABSTRACT OF THE DISCLOSURE Apparatus and method for preparing a smear of a biological fluid substance containing cellular material on a first element having a surface for receiving the smear, utilizing a second element coacting with the first element. There is provided, in a method having the steps of supporting the elements so that at least portions thereof are in close proximity to one another at a sample-applying station, introducing a relatively small quantity of such biological liquid sample between the aforementioned element portions at the sample-applying station for spreading of the sample across at least the central portion of at least one of the aforementioned elements, and drawing the sample on the aforemen- tioned surface of the first element by moving one of the elements relatively to the other; the combination of mixing the sample at least during the drawing of the sample so as to obtain a random distribution of such cellular material and enhance spreading such cellular material in a direction normal to the drawing of the sample.

254312

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