Specimen fixing device and method for making animal mucosal tissue specimens

Abstract

The invention discloses a specimen fixing device and an animal mucous membrane tissue specimen producing method. The specimen fixing device is used for fixing an animal mucous membrane tissue specimen. The specimen fixing device comprises the following components: a fixing station, which employs a non-infiltrating material and comprises a fixing plane for fixing the specimen, wherein the fixing plane is opened with several inserting holes for fixing; a fixing nail, which is produced by employing the non-infiltrating material and comprises a nail body for inserting into the inserting hole for fixing, a fixing structure which is arranged on the nail body, and a gland which is exposed from the top of the fixing plane, wherein the outer contour of the gland is larger than the nail body; when the fixing nail passes through the specimen and inserts into the fixing inserting hole, the fixing structure and the fixing station are matched for fixing; the nail body is used for traversing the specimen, and the gland part and the fixing plane are used for respectively supporting the upper and down sides of the specimen. The device has the effects for stably fixing the specimen and avoiding pollution of the specimen.

Description

technical field [0001] The invention relates to the technical field of specimen preparation, in particular to a specimen fixing device and a preparation method for animal mucosal tissue specimens. Background technique [0002] Traditional fixed animal mucosal tissue, such as stomach, large intestine, small intestine, etc., in the process of specimen processing, the mucosal tissue is first cut open, the mucosa, such as stomach, intestine, and contents are cleaned, and then the entire mucosal specimen needs to be soaked in preservatives and other reagents middle. Since various reagents inevitably have irritating or dehydrating effects on the mucosal tissue, if the biological tissue is not stretched and fixed before soaking, it may cause some flat sheet or membrane-like mucosal tissue to shrink into a ball, Observational value is lost. [0003] The current commonly used method for fixing and collecting materials is to fix the tissue to be soaked on a cardboard with pins, and ...

AI Technical Summary

Problems solved by technology

[0004] Although this method can ensure that the soaked general tissue does not undergo significant deformation, it has the following shortcomings and causes secondary pollution:

[0005] On the one hand, pins will be corroded by biological tissue fluid and soaking reagents, causing the tissue near the pinhole to be polluted by free iron ions, resulting in artificial artifacts and pigmentation in tissue stained sections, which interfere with histopathological diagnosis

[0006] On the other hand, after soaking for a long time, the cardboard will be soaked and disintegrated in the soaking solution. Not only will it lose its fixed value, but the paper fibers suspended in the soaking reagent will cause secondary pollution to the tissue.

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