Patent ID: 7866485

Claim:
A multi-component material separator assembly comprising: a cylindrical outer wall closed at the top by an upper plate having a bottom surface and closed at the bottom, the outer wall having an inner surface; an inner wall generally concentric with the cylindrical outer wall and having a top edge and a bottom, the inner wall having a central axis, the bottom of the inner wall being closed by a sloped bottom plate having a central opening, the bottom plate having an upper surface sloped down to the central opening, the top edge of the inner wall terminating at a distance from the upper plate to define an annular erythrocyte passageway therebetween, the inner wall having an outer surface and having an inner surface that slopes radially inward from the top edge to the bottom at an angle from about 0.2 degrees relative to the central axis of the inner wall; an area for placing a material within the inner wall; and a cylindrical depth filter positioned between the inner surface of the outer wall and the outer surface of the inner wall in communication with the inner wall through the erythrocyte passageway.