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Dry heat sterilization indicator and preparation method thereof

A dry heat sterilization and indicator technology, which is applied in heating, testing the degree of sterilization, sanitary equipment for toilets, etc., can solve the problems of affecting the interpretation of the results, deepening the color of the indicator, and difficult interpretation, etc., to achieve intuitive results and formula stable effect

Active Publication Date: 2017-02-01
NANJING JUSHA DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this type of indicator are: 1. When exposed to the air for a long time, the color of the indicator will deepen, which will affect the interpretation of the results; 2. After sterilization, it needs to be compared with the contrast color. If the contrast color span is not large, it will be difficult to interpret

Method used

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  • Dry heat sterilization indicator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A dry heat sterilization indicator, its components and the mass parts of each component are:

[0017] 3 parts of methylaminoanthraquinone, 5 parts of polyvinylpyrrolidone, 90 parts of mannitol

[0018] After the above components are uniformly stirred for 25-40 minutes, they are sent into a tablet machine for tablet compression. Finally, put the tablet into a device with an absorbent paper core and seal it to obtain a dry heat sterilization indicator.

Embodiment 2

[0020] A dry heat sterilization indicator, its components and the mass parts of each component are:

[0021] 1 part of methylaminoanthraquinone, 10 parts of polyvinylpyrrolidone, 90 parts of mannitol

[0022] After the above components are uniformly stirred for 25-40 minutes, they are sent into a tablet machine for tablet compression. Finally, put the tablet into a device with an absorbent paper core and seal it to obtain a dry heat sterilization indicator.

Embodiment 3

[0024] A dry heat sterilization indicator, its components and the mass parts of each component are:

[0025] 10 parts of methylaminoanthraquinone, 10 parts of polyvinylpyrrolidone, 50 parts of mannitol

[0026] After the above components are uniformly stirred for 25-40 minutes, they are sent into a tablet machine for tablet compression. Finally, put the tablet into a device with an absorbent paper core and seal it to obtain a dry heat sterilization indicator.

[0027] During monitoring, put the above-mentioned dry heat sterilization indicators, biological indicators and articles to be sterilized together in packaging materials, and use a closed method for packaging. After packaging, put it in a dry heat sterilizer for sterilization. The sterilization temperature is 160°C, and the sterilization time is 2 hours. After the sterilization is finished, take out the above-mentioned package, the sterilization indicator covers the entire absorbent paper core, and the biological indi...

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Abstract

The invention discloses a dry heat sterilization indicator and a preparation method of the dry heat sterilization indicator, belonging to the field of dry heat sterilization indication. The dry heat sterilization indicator is prepared from the following active ingredients in parts by weight: 1-10 parts of methylamino anthraquinone, 1-10 parts of polyvinylpyrrolidone, and 50-90 parts of mannitol. The preparation method of the dry heat sterilization indicator comprises the following steps: placing the active ingredients into a mixer, uniformly mixing the active ingredients so that a mixed material is formed, feeding the mixed material into a tablet press, and carrying out tabletting, thus obtaining sterilization indication tablets; placing the indication tablets into a device with a water-absorbing paper core, and sealing the device, thus obtaining the dry heat sterilization indicator. For the dry heat sterilization indicator provided by the invention, when exposed under the 160-180 DEG C dry heat condition, the indication tablets melt and creep along the water-absorbing paper core, and then whether the sterilization is qualified or not can be judged according to the creeping distance.

Description

technical field [0001] The invention relates to a dry heat sterilization indicator and a preparation method thereof, belonging to the field of dry heat sterilization indicators. Background technique [0002] Effective sterilization of medical kits is the key link to avoid postoperative infection of patients. At present, the commonly used sterilization method is high-pressure steam sterilization, but for some items that are not heat-resistant, moisture-resistant, steam or gas cannot penetrate, such as glass, grease, powder, etc., the commonly used sterilization method is dry heat sterilization. At present, the common dry heat sterilization indicator on the market is a chemical change monitoring card, that is, when a certain temperature and time are reached, the indicator will undergo a chemical reaction and change color, thereby judging whether the item meets the sterilization requirements. However, the disadvantages of this type of indicator are: 1. When exposed to the air ...

Claims

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Application Information

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IPC IPC(8): A61L2/28A61L2/04G01N31/22
CPCA61L2/04A61L2/28G01N31/226
Inventor 王卫周平乐
Owner NANJING JUSHA DISPLAY TECH
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