A kind of low temperature plasma sterilization pen

Abstract

The invention discloses a low-temperature plasma sterilization pen, which comprises a casing with an inlet and an outlet, and a low-temperature plasma generator, a power supply, a gas control unit, and a pen tip arranged in the casing. The shape of the casing is set to be able to be held by hand. The pen shape; the pen tip is slidably arranged in the housing, the pen tip is set to extend at least partially from the outlet of the housing, the pen tip includes a through tube made of multiple sections of dielectric material, and the two through tubes are connected by a flexible pipe joint Unicom; the gas control unit is used to deliver gas into the lumen of the pen tip; the low-temperature plasma generator includes at least one set of metal electrodes arranged in the lumen of the pen tip, and a set of metal electrodes includes a first metal electrode and a second metal electrode , The power supply is respectively connected to the first metal electrode and the second metal electrode, and the outer layer of the first metal electrode or the second metal electrode is covered with an insulating medium; the present invention prolongs the existence time of plasma, and realizes high efficiency, safety and all-round destruction Bacteria, especially can also be carried portable.

Description

technical field [0001] The invention belongs to the field of plasma applications, in particular to wound sterilization suitable for human / animal bodies, micro-gap sterilization of medical precision equipment, and in particular to a low-temperature plasma sterilization pen. Background technique [0002] As matter is continuously supplied with energy, its temperature rises and it usually changes from solid to liquid and then to gas. Continued supply of energy causes the system to undergo a further state transition, during which neutral atoms or molecules of the gas are knocked open by energetic collisions, producing negative electrons, positively or negatively charged ions, and other excited species. This mixture of charged and otherwise excited particles exhibits collective behavior and is called "plasma", also known as the fourth state of matter. [0003] Plasma is generally generated between two electrodes, and the gas between the electrodes is broken down and ionized to f...

AI Technical Summary

Problems solved by technology

[0006] However, the currently commonly used plasma beam sterilization equipment has one or more of the following problems. The existing sterilization equipment cannot guarantee the existence time of the plasma for a longer period of time. Second, when it is necessary to treat micro-gap or places that are difficult to be easily handled by general equipment, the existing plasma sterilization equipment It cannot be completed. Thirdly, the existing plasma sterilization equipment does not have appropriate protection functions for the human body and users. In some emergencies, personal safety and property safety cannot be well maintained. Fourthly, the existing plasma sterilization equipment Body sterilization equipment is too large to be carried around, and it is difficult to realize the universality of its sterilization function.

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