Categorization fixing device for freezing and storing example by liquid nitrogen

Abstract

The invention discloses a classification fixing device for a sample frozen by liquid nitrogen. The classification fixing device comprises a fixing plate; the fixing plate is provided with an opening; the outer edge of the fixing plate is provided with a plurality of clamping grooves; and a marker for distinguishing, positioning and freezing the sample is arranged between the clamping grooves. The invention relates to the classification fixing device with a simple structure and convenient use, can rapidly and accurately distinguish and extract the needed sample in order to accurately suspend and position the needed sample and better freeze the sample.

Description

Technical field

[0001] The invention relates to a sample sorting and fixing device, in particular to a liquid nitrogen freezing sample sorting and fixing device. Background technique

[0002] At present, most scientific research and medical institutions use liquid nitrogen tanks to freeze and store samples. Commonly used devices for suspending samples are cloth bags and buckets that are matched with liquid nitrogen tanks. The usual method is to tighten the cloth bag mouth with a rope, the cloth bag is suspended in liquid nitrogen, and the other end of the rope is led out through the narrow gap between the liquid nitrogen tank plug and the edge of the tank mouth. Since the diameter of the liquid nitrogen tank mouth is usually narrow, for example, the diameter of the 35 liter liquid nitrogen tank mouth is only 10 cm, so the circumference of the tank mouth edge is about 31 cm. When there are multiple suspension ropes tied to the tank mouth edge at the same time , The suspension rope...

Examples

Embodiment Construction

[0014] The liquid nitrogen cryopreserved sample classification and fixing device of the present invention is such as figure 1 with figure 2 As shown, it includes a fixed plate 1. The central position of the fixed plate 1 has an opening 2. The diameter of the opening 2 is slightly larger than the outer diameter of the bottle mouth of the liquid nitrogen tank 10. The fixed plate 1 is made of wood, and the outside of the fixed plate 1 Between the edge and the opening 2 is an inclined plate inclined to the opening 2. The opening 2 passes through the mouth of the liquid nitrogen tank 10 and sets the fixing plate 1 on the neck of the liquid nitrogen tank 10. The outer edge of the fixing plate 1 is also A raised peripheral edge 4 is provided, and the outer edge of the raised peripheral edge 4 is provided with a clamping groove 3 for clamping the suspension rope 9 of the frozen sample, and the clamping grooves 3 are evenly distributed on the circumferential surface of the raised peripher...

Technical field

[0001] The invention relates to a sample sorting and fixing device, in particular to a liquid nitrogen freezing sample sorting and fixing device. Background technique

[0002] At present, most scientific research and medical institutions use liquid nitrogen tanks to freeze and store samples. Commonly used devices for suspending samples are cloth bags and buckets that are matched with liquid nitrogen tanks. The usual method is to tighten the cloth bag mouth with a rope, the cloth bag is suspended in liquid nitrogen, and the other end of the rope is led out through the narrow gap between the liquid nitrogen tank plug and the edge of the tank mouth. Since the diameter of the liquid nitrogen tank mouth is usually narrow, for example, the diameter of the 35 liter liquid nitrogen tank mouth is only 10 cm, so the circumference of the tank mouth edge is about 31 cm. When there are multiple suspension ropes tied to the tank mouth edge at the same time , The suspension rope...

Examples

Embodiment Construction

[0014] The liquid nitrogen cryopreserved sample classification and fixing device of the present invention is such as figure 1 with figure 2 As shown, it includes a fixed plate 1. The central position of the fixed plate 1 has an opening 2. The diameter of the opening 2 is slightly larger than the outer diameter of the bottle mouth of the liquid nitrogen tank 10. The fixed plate 1 is made of wood, and the outside of the fixed plate 1 Between the edge and the opening 2 is an inclined plate inclined to the opening 2. The opening 2 passes through the mouth of the liquid nitrogen tank 10 and sets the fixing plate 1 on the neck of the liquid nitrogen tank 10. The outer edge of the fixing plate 1 is also A raised peripheral edge 4 is provided, and the outer edge of the raised peripheral edge 4 is provided with a clamping groove 3 for clamping the suspension rope 9 of the frozen sample, and the clamping grooves 3 are evenly distributed on the circumferential surface of the raised peripher...

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