Handheld medical cold-sealed air plasma jet spray gun

Abstract

The invention discloses a handheld medical cold-sealed air plasma jet spray gun in the field of plasma sterilization and disinfection, which comprises a device shell, and a discharge electrode, a Tesla coil, a touch screen, a cooling fan, an internal circuit, a control switch and a power lithium battery which are arranged in the device shell, wherein the power lithium battery is connected with the touch screen, the control switch and the Tesla coil through the internal circuit. The touch screen can regulate and control the pulse width of a square wave pulse signal and control the conduction time of an IGBT, on the one hand, tip pulse discharge is controlled, and the discharge jet flow temperature is reduced; on the other hand, the cooling fan is driven to be linked, when the pulse width is widened, the IGBT conduction time is prolonged, the rotating speed of the cooling fan is increased, the wind speed is increased, and the purpose of reducing the discharge jet flow temperature is achieved. Stable, continuous and high-density cold plasma is generated on the discharge electrode. The handheld medical cold-sealed air plasma jet spray gun has the advantages of high sterilization efficiency, universality and flexibility, can meet the sterilization requirement in the medical field, and is smaller in equipment size, convenient to carry and simple to operate.

Description

technical field [0001] The invention relates to the field of plasma disinfection and sterilization, and in particular relates to a hand-held medical cold-tight air plasma jet spray gun. Background technique [0002] Disinfection and sterilization are the most effective means to prevent infection. Traditional methods usually use liquid solvent disinfection and high-temperature steam sterilization for disinfection and sterilization. However, liquid solvent disinfection will cause the surface of the object to be sterilized to be eroded to varying degrees, which will affect its working performance and cause certain pollution to the environment. Moreover, disinfectant disinfection needs to be prepared in different concentrations according to the characteristics of different items. Not only is it cumbersome to use, but also the effect of incomplete sterilization is not good. Prolonged contact with disinfectant by staff will also pose a serious threat to health. Heat-sensitive med...

AI Technical Summary

Problems solved by technology

However, inert gases such as helium need to be introduced during the use process, which not only increases the production cost, but also limits the flexibility of use and cannot be widely used. For items that are not easy to package or have irregular shapes (such as scalpels) and corner gaps There are also problems with all-round disinfection and sterilization

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