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Tissue processing cassette

  • US 5,427,742 A
  • Filed: 04/26/1994
  • Issued: 06/27/1995
  • Est. Priority Date: 04/26/1994
  • Status: Expired due to Term
First Claim
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1. A tissue processing cassette, comprising:

  • a base frame and a removable lid frame, each including a central opening and a face adapted to abut the face of the other in registered relationship in a closed position, wherein the base frame includes an inner base frame defining the central opening of the base frame, an outer base frame spaced from and surrounding the inner base frame, and a rigid, porous web supporting the inner base frame from the outer base frame;

    means for releasably maintaining the base frame and the lid frame in the closed position; and

    a porous screen spanning the central opening of each of the base frame and the lid frame, the screens being spaced apart in the closed position with the base frame, the lid frame and the porous screens defining an enclosure for holding a tissue specimen during preparation for histological examination while permitting process fluids to flow through the enclosure, the enclosure being further defined by an interior perimeter wall including no sharp corners between the screens.

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