Plasma-Activated Sterilization Mist Generator
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Solution Overview
Problem
Existing sterilization methods using hydrogen peroxide and plasma struggle to sufficiently activate sterilization solutions in mist form due to difficulties in maintaining effective plasma discharge treatment.
Innovation Solution
An apparatus and method that incorporate a plasma treatment unit for gas discharge treatment, a sterilization solution treatment unit to convert the solution into droplets or mist, and the combination of treated gas with the solution, along with additives like DTPA and ultraviolet irradiation to enhance activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high jet pressure is used to jet the sterilization solution, then the sterilization solution can be applied rapidly, but it is difficult to sufficiently activate the sterilization solution in mist state
Solution Approach 1:
The sterilization solution is segmented into fine droplets or mist state through the droplet/mist generator, increasing the surface area for plasma treatment. This segmentation allows better contact between plasma radicals and the sterilization solution, improving activation while maintaining rapid application capability.
Solution Approach 2:
The plasma treatment is applied preliminarily to the sterilization solution before application, activating the solution in advance. The plasma discharge treatment unit treats the sterilization solution or gas containing oxygen before the solution is jetted, ensuring sufficient activation occurs prior to rapid application.
2Reliability
If high voltage plasma discharge treatment is applied to the sterilization solution, then activation should improve, but the rapidly passing mist state solution cannot be sufficiently activated
Solution Approach 1:
The patent changes the physical state parameters of the sterilization solution by converting it into a mist or droplet form. This parameter change increases the surface area to volume ratio, allowing plasma radicals to more effectively penetrate and activate the sterilization solution even during rapid passage through the plasma field.
Solution Approach 2:
The patent introduces gas (containing oxygen) as an intermediary medium. The plasma discharge treatment is applied to the gas, which then mixes with the sterilization solution. This intermediary approach allows plasma activation to occur more effectively, as the activated gas molecules transfer energy and radicals to the sterilization solution during mixing.
3Reliability
If the sterilization solution is maintained in liquid form, then plasma discharge treatment can be applied, but the activation efficiency is insufficient compared to mist state
Solution Approach 1:
The patent utilizes phase transition by converting the sterilization solution from liquid form to mist or droplet form. This phase change enables more effective plasma discharge treatment and activation, as the dispersed droplets or mist provide greater surface area for plasma interaction while maintaining the chemical properties of the original solution.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively increases the activation degree of the sterilization solution, improving its sterilizing power by mixing plasma-treated gas radicals with the solution in a droplet or mist state, thereby enhancing disinfection and sterilization efficacy.
Implementation Method 1
a plasma treatment unit for performing plasma discharge treatment on gas
Implementation Method 2
a droplet or mist generator provided in the storage container and used to change the sterilization solution into the droplet or mist state
Implementation Method 3
an ultraviolet irradiating unit for irradiating ultraviolet light to the sterilization solution stored in the sterilization solution supply unit
Implementation Method 4
The gas treated by the plasma discharge treatment may be mixed with the sterilization solution in the droplet or mist state
Data Source
AI summary
An apparatus for generating an activated sterilization solution is disclosed. The apparatus may include a plasma treatment unit for performing plasma discharge treatment on a gas, and a sterilization solution treatment unit for changing a sterilization solution into a droplet or mist state. The gas treated by the plasma discharge treatment may be mixed with the sterilization solution in the droplet or mist state.