Hydrogen peroxide low-temperature plasma sterilizer with waist-shaped holes in electrode net

Abstract

The invention discloses a hydrogen peroxide low-temperature plasma sterilizer with waist-shaped holes in the electrode net. The sterilization equipment includes a cavity, a control system, a pressure probe, a vacuum pump and an electrode net. The electrode net is insulated and connected to the cavity. The cavity is positively charged, and the electrode net is negatively charged. Multiple waist-shaped through holes are evenly opened on the electrode net. This invention can generate uniform discharge during the sterilization process, and effectively protect the sterilized medical devices while sterilizing them. equipment.

Description

technical field [0001] The invention relates to a sterilizing device, in particular to a low-temperature sterilizing device which uses hydrogen peroxide to sterilize medical devices, and belongs to the technical field of medical device disinfection. Background technique [0002] In the medical field, the disinfection and sterilization of medical devices is particularly important. The most advantageous and popular medical device disinfection and sterilization method today is hydrogen peroxide sterilization. In order to improve the sterilization effect, shorten the sterilization time and reduce the cost of sterilization , it is usually necessary to use heating or ionization to vaporize or plasma the hydrogen peroxide liquid, and then sterilize the medical device. The principle of ionization is that both the cavity and the electrode network are charged, and the cavity is positively charged, and the electrode network is negatively charged, the discharge between the cavity and th...

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Problems solved by technology

[0003] But because most of the openings on the electrode net are round holes or square holes at present, and the distance between the holes is too dense, there are the following deficiencies: if it is a square hole, such as a kind of sterilizer disclosed in Chinese patent 200920031191.2, due to the square opening on the electrode net The holes have sharp corners, which are prone to tip discharge and sparking, so in the process of sterilizing medical devices, there is a phenomenon of burning candles on medical devices; if the electrode net is a round hole, the round part is easy to generate current The vortex, and because the discharge part is a solid part rather than a through-hole part, the size of the solid part between the round holes is uneven, resulting in strong or weak discharge, and the charge of the part with a large solid area will pull the charge of the part with a small area, Further lead to uneven discharge, resulting in sparking, thus causing candle burning to sterilized medical devices

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