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Apparatus for histological tissue processing

  • US 4,141,312 A
  • Filed: 05/16/1977
  • Issued: 02/27/1979
  • Est. Priority Date: 05/16/1977
  • Status: Expired due to Term
First Claim
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1. Apparatus for processing histological tissue specimens comprising:

  • (a) a vacuum tight container for specimens and treating fluids having a removable cover for unencumbered placement of specimens in the container, said container having a single opening for inlet and drain at the bottom thereof,(b) first and second valves in communication with the inlet and drain opening in the container,(c) a container for warm impregnant or the like in communication with said first valve,(a) a third valve having a plurality of selectable ports and a common port connectable to any of said selectable ports, said common port in communication with said second valve,(e) a plurality of treating fluid containers in communication with said selectable ports on said third valve,(f) a vacuum pump in communication with said specimen container,(g) a vacuum exhaust valve in communication with said specimen container,(h) means for controlling the first, second and third valves, the vacuum pump and the vacuum exhaust valve to sequentially draw treating fluids into said specimen container and return the treating fluids to their respective containers, and finally to draw warm impregnant into said specimen container to treat histological tissue specimens.

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