Patent ID: 7914738
Filing Date: 2011-03-29
Classification: C12M,G01N,Y10T

Abstract:
1. A cell block cassette and filter assembly, comprising: a cell block cassette having a having a collection aperture formed therein, the cell block cassette defining a downward facing annular groove formed in a bottom surface thereof, the groove surrounding the collection aperture; and a filter assembly removably attached to the cell block cassette, the filter assembly defining a collection well in communication with the collection aperture, and having a filter positioned across a bottom surface of the collection well, sized to retain cellular matter carried in a fluid dispensed through the collection aperture into the collection well, the filter assembly comprising a base portion and a neck portion extending away from the base portion, the neck portion defining a perimeter of the collection well and having an annular top end that makes an interference fit with the downward facing annular groove located in the bottom surface of the cell block cassette so as to detachably attach the filter assembly to the cell block cassette, wherein the collection aperture of the cell block cassette and the collection well of the filter assembly are configured and dimensioned so that liquefied paraffin dispensed therein may solidify to form a solid wax protrusion retained by, and extending beyond the bottom surface of, the cell block cassette when the filter assembly is thereafter detached, with cellular matter previously retained by the filter forming a layer of cells at an outermost end of the wax protrusion.