The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 01, 1998

Filed:

Jan. 29, 1998
Applicant:
Inventors:

Ian Michael Kerrod, Deeside, GB;

George Alan Walton, Tarporley, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ;
U.S. Cl.
CPC ...
435 405 ; 435 4052 ; 435 3071 ; 422102 ; 422104 ; 425117 ; 118429 ; 118500 ; 220307 ; 220339 ;
Abstract

Apparatus for processing tissue samples for histological examination comprises a cassette defining a chamber to receive a tissue specimen and having an opening to allow processing fluids to enter and leave the chamber and to allow, eventually, molten wax to enter the chamber for embedding the tissue sample. The apparatus incorporates a temperature-sensitive valve mechanism for closing said opening once the cassette, with the tissue specimen therein, has been immersed in a container of hot molten wax, so that the wax can be retained in the cassette, around the specimen, when the cassette is withdrawn from the molten wax container, until the wax around the specimen has solidified. The temperature sensitive valve mechanism may comprise a shape-memory element.


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