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Method of producing biological specimens

  • US 4,784,873 A
  • Filed: 04/30/1984
  • Issued: 11/15/1988
  • Est. Priority Date: 05/30/1983
  • Status: Expired due to Fees
First Claim
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1. A method for producing durable, flexible biological specimens from initial specimens containing tissue water comprising, removing the tissue water from the specimen in a vacuum and simultaneously treating the specimen with a water-soluble impregnating agent being polyethylene glycol having a vapor pressure lower than tissue water, regulating the vacuum pressure by continuous negative adjustment of the partial pressure gradient of the tissue water so that the tissue water is evaporated at a rate which allows direct and continuous substitution of the tissue water by the impregnating agent.

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