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Soft-embedded cross-section specimen and its preparation method

A fabrication method and cross-section technology, which are applied to the field of soft-embedded cross-section specimens and their fabrication, can solve the problems of inconvenient pointing to the specimen, inconvenient storage, inconvenient use, etc. Effect

Active Publication Date: 2021-06-29
河南中博科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, specimens with high hardness are easy to crack and deform, which is not convenient for storage. At the same time, hard resin-embedded specimens cannot touch the biological specimens embedded in the resin during use, and it is inconvenient to point to the specific position of the specimen, which is not convenient for use.

Method used

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  • Soft-embedded cross-section specimen and its preparation method
  • Soft-embedded cross-section specimen and its preparation method
  • Soft-embedded cross-section specimen and its preparation method

Examples

Experimental program
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Embodiment 1

[0029] The embedding agent of the present embodiment comprises the following components in parts by mass:

[0030] 100 parts of UV curable resin, 0.05 part of initiator, 0.04 part of anti-yellowing agent.

[0031] The UV curable resin is urethane acrylate.

[0032] The initiator is tert-butyl peroxide.

[0033] Anti-yellowing agent is phosphite.

[0034] The hardness of the cured UV curable resin is Shore A60.

[0035] The preparation method of the soft embedding section specimen of the present embodiment comprises the following steps:

[0036] 1) Antiseptic treatment: select human specimens that are complete, without trauma, without fractures, and without lesions, and perfuse the specimens with formalin with a volume fraction of 15%. Malin penetrated into various parts of the specimen, and finally put it into 8% formalin preservation solution for 3 months to obtain the specimen after antiseptic treatment.

[0037] 2) Freezing: Put the specimen after the antiseptic treatm...

Embodiment 2

[0047] The embedding agent of the present embodiment comprises the following components in parts by mass:

[0048] 100 parts of UV curable resin, 0.1 part of initiator, 0.03 part of anti-yellowing agent.

[0049] The UV curable resin is polyester acrylate.

[0050] The initiator is 1-hydroxy-cyclohexyl-phenylmethanone.

[0051]The anti-yellowing agent is phosphorothioate.

[0052] The hardness of the cured UV curable resin is Shore A70.

[0053] The preparation method of the soft embedding section specimen of the present embodiment comprises the following steps:

[0054] 1) Antiseptic treatment: select human specimens that are complete, without trauma, fractures, and lesions, perfuse the specimens with 20% formalin, and infiltrate the formalin through large blood vessels (femoral artery, common carotid artery) to each part of the specimen, and finally soaked in 10% formalin preservation solution for 4 months to obtain the specimen after antiseptic treatment.

[0055] 2) F...

Embodiment 3

[0065] The embedding agent of the present embodiment comprises the following components in parts by mass:

[0066] 100 parts of UV curable resin, 0.5 part of initiator, 0.05 part of anti-yellowing agent.

[0067] The UV curable resin is polyether acrylate.

[0068] The initiator is Phosphate Acrylate 7112.

[0069] Anti-yellowing agent is phosphite.

[0070] The hardness of the cured UV curable resin is Shore A90.

[0071] The preparation method of the soft embedding section specimen of the present embodiment comprises the following steps:

[0072] 1) Antiseptic treatment: select human specimens that are complete, without trauma, without fractures, and without lesions, perfuse the specimens with 18% formalin, and infiltrate the formalin through large blood vessels (femoral artery, common carotid artery) to each part of the specimen, and finally soaked in 12% formalin preservation solution for 3 months to obtain the specimen after antiseptic treatment.

[0073] 2) Freezing...

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Abstract

The invention relates to a soft-embedded cross-section specimen and a preparation method thereof, belonging to the technical field of biological resin embedding cross-sections. The method for making a soft-embedded cross-section specimen comprises the following steps: freezing the biological specimen and sawing the cross-section specimen into slices, dehydrating and degreasing the cross-section specimen to obtain a pretreated cross-section specimen; Putting it in a mold, pouring a soft embedding agent into the mold at a non-initiating temperature, the embedding agent is an embedding agent with flexibility after curing; after the infusion is completed, it is cured at an initiating temperature to obtain the product. The soft-embedded cross-section specimen has good flexibility after curing, is not easy to crack and deform, and is convenient for storage and use.

Description

technical field [0001] The invention belongs to the technical field of biological resin embedding section, in particular to a soft embedding section specimen and a preparation method thereof. Background technique [0002] At present, the commonly used cross-section specimens for teaching and learning in schools include: hard resin embedded cross-section specimens, impregnated cross-section specimens and model cross-section specimens. The model cross-section specimen has a simple structure, which causes a certain deviation between the teaching and the real specimen, and cannot realize the display of the real structure of the specimen. Immersion section specimens have a simple production process and need to be stored in liquid. They cannot be exposed to air for a long time, and they are toxic and have a pungent smell. It is impossible to intuitively feel the position and shape of the specimen by hand. Embedded specimen technology has been applied to the field of bioanatomical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/00A01N1/00
CPCA01N1/00G09B23/00
Inventor 程明亮赵顺贠跃进户振国张帅斌吉晓磊
Owner 河南中博科技有限公司
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