Sterilization method and application of hydrogen peroxide low-temperature plasma sterilizer

A technology of low-temperature plasma and hydrogen peroxide, which is applied in the field of medical system sterilization, can solve the problems of limited use and achieve the effect of enhancing penetration, improving sterilization effect, and good sterilization effect

Active Publication Date: 2015-04-29
SHINVA MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adjustment and control technology is adopted, the control process is improved, and the technical scheme of determining reasonable parameters is used to achieve the sterilization of the items, which solves the problem of limited use of the current hydrogen peroxide low-temperature plasma sterilizer, and greatly improves the peroxidation rate. The scope of application of the hydrogen low temperature plasma sterilizer is especially suitable for the disinfection and sterilization of items with a lumen with an inner diameter greater than or equal to 1mm and a length less than or equal to 500mm

Method used

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  • Sterilization method and application of hydrogen peroxide low-temperature plasma sterilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Put 10 stainless steel needles with a diameter of 0.3mm and a length of 40mm contaminated with spores of Bacillus stearothermophilus into the middle of ten stainless steel tube lumens with an inner diameter of 1mm and a length of 500mm, and put them into PS-100 low-temperature hydrogen peroxide plasma needles with qualified pressure holding. In the body sterilizer, set the parameters according to Table 1 for sterilization, and put the steel needles into the culture medium after sterilization.

[0036] Table 1 Control parameters

[0037] Evacuate the lower limit Hydrogen peroxide concentration after purification Vaporization chamber temperature Diffusion pressure Diffusion time Plasma power working time Sterilization cavity volume Sterilization chamber wall temperature 80pa 90% 73℃ 1450pa 8m0s 3m0s 125L 48℃

Embodiment 2

[0039] Put 10 stainless steel needles with a diameter of 0.3mm and a length of 40mm contaminated with spores of Bacillus stearothermophilus into the middle of ten stainless steel tube lumens with an inner diameter of 1mm and a length of 400mm, and put them into PS-100 type hydrogen peroxide low-temperature plasma with qualified pressure holding. In the body sterilizer, set the parameters according to Table 2 for sterilization, and put the steel needles into the culture medium after sterilization.

[0040] Table 2 Control parameters

[0041] Evacuate the lower limit Hydrogen peroxide concentration after purification Vaporization chamber temperature Diffusion pressure Diffusion time Plasma power working time Sterilization cavity volume Sterilization chamber wall temperature 80pa 90% 73℃ 1300Pa 8m0s 3m0s 125L 48℃

Embodiment 3

[0043] Put 10 stainless steel needles with a diameter of 0.3 mm and a length of 40 mm contaminated with spores of Bacillus stearothermophilus into the middle of 10 laparoscopic instruments, and put them into PS-100 type hydrogen peroxide low-temperature plasma sterilizers with qualified pressure holding. In the sterilizer, set the parameters according to Table 3 for sterilization, and put the steel needle into the culture medium after sterilization.

[0044] Table 3 Control parameters

[0045] Evacuate the lower limit Hydrogen peroxide concentration after purification Vaporization chamber temperature Diffusion pressure Diffusion time Plasma power working time Sterilization cavity volume Sterilization chamber wall temperature 80pa 90% 68℃ 1500Pa 8m0s 4m0s 125L 55℃

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Abstract

The invention belongs to the technical field of medical system sterilization and particularly relates to a sterilization method and an application of a hydrogen peroxide low-temperature plasma sterilizer. By adopting a technical scheme that an adjusting control process is adopted to improve and control the flow and determine reasonable parameters, the purpose of sterilizing articles is achieved, the problem of use limitation of an existing hydrogen peroxide low-temperature plasma sterilizer is solved, the application range of the hydrogen peroxide low-temperature plasma sterilizer is greatly expanded, and the hydrogen peroxide low-temperature plasma sterilizer is especially suitable for the sterilization of the articles with pipe cavities with inner diameters not less than 1mm and lengths not more than 500mm.

Description

technical field [0001] The invention belongs to the technical field of medical system sterilization, and in particular relates to a sterilization method and application of a hydrogen peroxide low-temperature plasma sterilizer. Background technique [0002] Hydrogen peroxide low-temperature plasma sterilizer is a newly developed sterilizer in recent years, because of its low sterilization temperature, short sterilization time, no pollution after sterilization, and no harm to the operation and the user's body , is being recognized and accepted by the majority of users. [0003] However, as the number of times customers use it increases and their understanding deepens, more and more shortcomings are exposed in the sterilization process; because of its small sterilization pressure difference and weak penetration ability, it has a length limit for lumen sterilization. Especially for the most common endoscopic instruments for low-temperature sterilization in hospitals, the inner...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L2/20A61L2/14A61L101/22
Inventor 于江龙赵庆海孙士磊王鹏飞
Owner SHINVA MEDICAL INSTR CO LTD
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