Atmosphere cold plasma disinfection method

Abstract

The invention provides an atmosphere cold plasma sterilizing method, and belongs to the technology field of plasma application. The invention is characterized in that the method comprises the following steps: pre-sterilizing a space where an object to be sterilized is positioned; selecting types of atmosphere cold plasma and determining working condition thereof; and placing the object to be sterilized in a discharge zone or a jet region of the selected atmosphere plasma for sterilizing. The atmosphere cold plasma can be one of atmosphere glow discharge cold plasma, atmosphere corona discharge cold plasma, atmosphere dielectric barrier discharge cold plasma, and atmosphere resistive barrier discharge cold plasma. The method has the advantages of no harmness to human body and environment, high sterilizing efficiency, wide types of discharge gas, etc.

Description

technical field [0001] The invention relates to a disinfection and sterilization method in the fields of medical treatment and public health, and the technical field of plasma application. Background technique [0002] The disinfection process refers to the reduction of a large number of pathogenic microorganisms, viruses or proteins present in the interior and exterior surfaces of the objects to be treated to below the specified survival rate or pathogenicity rate. Disinfection methods refer to the methods used in the disinfection process. These methods must effectively kill various microorganisms without endangering the object to be disinfected and the surrounding environment. The existing disinfection methods for medical and surgical instruments more or less have the disadvantages of low disinfection efficiency, endangering the sterilized object, complex operation, high cost and maintenance cost. [0003] In the field of medical and health care, disinfection is usually a...

AI Technical Summary

Problems solved by technology

But this post-discharge area disinfection method also has its disadvantages, such as it can only work under low pressure, and under high pressure (such as atmospheric pressure), the active particles are quickly recombined due to frequent collisions with gas molecules, and reach the object to be processed through the transmission pipeline no longer chemically active

However, vacuum equipment is necessary to work under low pressure, which will bring the disadvantages of high cost and complicated operation mentioned above.

In the invention patent with the publication number CN1611271 A and titled "A method for disinfecting air with a plasma environment and a device system for generating plasma", the inventor proposed a corona discharge plasma generated by using air ionization at atmospheric pressure The method of disinfecting ambient air does not require vacuum equipment, so the cost is greatly reduced and the operability is good, but the object of disinfection is limited to ambient air

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