Importance

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Abstract

The present invention is directed to a stackable cassette and apparatus for preparation of multiple tissue specimens for histological examination. The cassettes include a bottom wall, two side walls, a front wall and a back wall which define a cavity. The bottom wall has a plurality of apertures disposed therein for passage of fluid through the cassette in a direction orthogonal to the plane of the bottom wall. At least two walls selected from the back wall, two side walls and front wall have a plurality of apertures disposed therein for passage of fluid through the cassette in the direction parallel to the plane of the bottom wall. In one embodiment of the invention, the cassette further includes a web of porous material disposed over the apertures in the bottom wall and side walls. When the cassettes are placed in stacked relationship the bottom wall of an overlying cassette provides a cover for the underlying cassette.

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First Claim