Histological Specimen Treatment
First Claim
1. A process for preserving a specimen comprising:
- removing from the specimen cellular solutes that interfere with preservation and replacing the removed solutes with an impregnated support medium;
wherein the removing comprises extracting an amount of water supplied by the specimen;
wherein the extracting comprises;
dissolving the solutes including the amount of water using a dissolving compound;
forming an azeotropic water-containing mixture of the amount of water and a component of the dissolving compound;
azteotropically vaporizing off an amount of the azeotropic water-containing mixture;
forming a second azeotropic mixture of at least two components of the dissolving compound; and
azteotropically vaporizing off an amount of the second azeotropic mixture.
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Accused Products
Abstract
A single dissolving compound forms plural azeotropes, which can be azeotropically vaporized off at various stages of the treatment process, thus maintaining predictable concentrations of the chemicals present. The treatment process can be performed in the absence of formalin or related compounds which can interfere with the preservation of genetic material. A process for preserving a specimen includes using a dissolving compound that can form a plural number of azeotropes, at least one azeotrope being formed between one or more components of the dissolving compound and specimen-supplied water, and at least one azeotrope being formed between different components of the dissolving compound; successively and azeotropically vaporizing off formed azeotropes; and impregnating the specimen with a support medium.
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Citations
19 Claims
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1. A process for preserving a specimen comprising:
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removing from the specimen cellular solutes that interfere with preservation and replacing the removed solutes with an impregnated support medium; wherein the removing comprises extracting an amount of water supplied by the specimen; wherein the extracting comprises; dissolving the solutes including the amount of water using a dissolving compound; forming an azeotropic water-containing mixture of the amount of water and a component of the dissolving compound; azteotropically vaporizing off an amount of the azeotropic water-containing mixture; forming a second azeotropic mixture of at least two components of the dissolving compound; and azteotropically vaporizing off an amount of the second azeotropic mixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification