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Test tube capable of preserving heat

A test tube and opening technology, which is applied in the field of test tubes with self-insulating function, can solve the problem of sample waste, save energy, reduce heat convection and heat conduction, and achieve fast experimental turnover.

Inactive Publication Date: 2014-03-26
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sometimes, the solution to be tested collected or prepared in the laboratory has a certain temperature (for example: blood sample at 37°C), and it cannot be tested immediately after the test tube is filled. Meet the requirements of the test, which will cause waste of samples

Method used

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  • Test tube capable of preserving heat
  • Test tube capable of preserving heat

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 As shown, a test tube capable of self-insulation, the upper end is an opening, the lower end is a spherical sealing bottom 5, and the structure from the opening to the spherical sealing bottom 5 is a double-layer glass structure, including an outer layer 1, an inner layer 2, an outer layer 1 and In the middle of the inner layer 2 is an interlayer 3, which is sealed by a sealing ring 4 at the upper opening of the interlayer 3. The interlayer is a hollow layer and can be evacuated. In this embodiment, the double-layer vacuum test tube has been verified by blood samples. Within the same allowable temperature range (37±1°C), the heat preservation effect of the double-layer vacuum test tube (5.0min) is 5 times that of the traditional single-layer glass test tube (1min). times, which meets the requirements of the experiment.

Embodiment 2

[0016] figure 1 The interlayer 3 between the outer layer 1 and the inner layer 2 can be filled with transparent thermal insulation materials, such as antimony tin oxide (ATO) water-based thermal insulation transparent slurry, which has good transmission in the visible light region (380-780nm). In the near-infrared region (780-2500nm), it has a high barrier rate and good heat preservation effect. It has been verified by blood samples that within the same allowable temperature range (37±1℃), the heat preservation effect of test tubes filled with transparent insulation layers (4.9min) close to the heat preservation effect of vacuuming.

Embodiment 3

[0018] Such as figure 2 As shown, the outer layer 1 and the inner layer 2 of the spherical sealing portion 5 are filled with a chemical heat generating agent 6 in the interlayer 3, and a pinhole 7 is opened on the sealing ring 4 at the opening of the upper end of the test tube to communicate with the interlayer 3, and the pinhole 7 is usually sealed. , open when used, so that the air and the chemical heat generating agent 6 act slowly to generate heat, so that the solution sample in the test tube is automatically passively kept warm. The chemical heat generating agent 6 can use fine iron powder that is easily oxidized in contact with the air as the heat generating agent. By reasonably selecting the aperture size of the pinhole 7 and the filling amount of the chemical heat generating agent 6, the slow-release temperature can be adjusted, and the heat preservation effect is between 20 and 40°C can be adjusted, flexible to use, and suitable for the insulation requirements of dif...

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Abstract

The invention discloses a test tube capable of preserving heat. The upper end of the test tube is an opening part, and the lower end is a spherical sealing bottom part. The test tube is characterized in that an outer layer and an inner layer are arranged from the opening part to the spherical sealing bottom part; an interlayer is arranged in the middle of the outer layer and the inner layer; and the opening part at the upper end of the interlayer is sealed by a sealing ring. With adoption of the heat preservation test tube adopting a double-layer vacuumizing structure, a liquid sample can keep temperature in a certain time and does not need to be placed in a water bath box for heating, the use is convenient, and the experiment / detection speed is improved. In addition, energy source can be effectively saved, cross-infection of the sample in the water bath box is avoided, and the correctness and the authenticity of a detection result are ensured.

Description

technical field [0001] The invention relates to a test tube, in particular to a test tube with its own heat preservation function. Background technique [0002] Test tubes are the most commonly used glass instruments in laboratories, used to contain various solutions or reagents. Sometimes, the solution to be tested collected or prepared in the laboratory has a certain temperature (for example: blood sample at 37°C), and it cannot be tested immediately after the test tube is filled. Satisfy the detection requirements, this will cause sample waste. Therefore, after sampling / configuration, it is often necessary to put the sample together with the test tube into the water bath for insulation. [0003] In this way, it not only increases the preparation of the experiment, but also increases the chance of cross-infection of the samples in the water bath box. In order to improve work efficiency and speed up the experimental turnover, the development of a test tube with its own h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/14
Inventor 申广浩罗二平谢康宁刘娟吴小明汤池闫一力孙涛
Owner FOURTH MILITARY MEDICAL UNIVERSITY