Plasma Deodorization of Peracetic Acid in Sterilization Systems
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Solution Overview
Problem
The use of peracid agents like peracetic acid for sterilization generates irritating odors during the process, which can negatively impact the working environment, and existing methods require costly deodorization equipment to mitigate these effects.
Innovation Solution
A sterilization device and method that employs plasma generation during the pressure reduction process after sterilization, effectively deodorizing the remaining peracid agent by maintaining plasma generation at specific portions of the sterilization system, eliminating the need for large deodorization equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If peracid agent including peracetic acid is used as sterilization agent, then sterilization effect is improved, but irritating odor is generated
Solution Approach 1:
The patent applies plasma generation to convert the harmful irritating odor from peracetic acid into beneficial effects. The plasma decomposes the peracetic acid molecules through high-energy electron collisions, transforming the harmful odor into harmless substances like water, oxygen, and carbon dioxide, while simultaneously achieving additional sterilization and surface modification effects
Solution Approach 2:
The patent changes the physical and chemical parameters of the peracetic acid by applying plasma. The plasma environment (high energy, ionized state) alters the molecular structure and chemical properties of peracetic acid, decomposing it into different substances with different odor characteristics, thus resolving the odor problem while maintaining sterilization efficacy
2Object-generated harmful factors
If conventional deodorization equipment is used to reduce odor, then odor control is improved, but device complexity and cost increase
Solution Approach 1:
The plasma generation device serves multiple functions simultaneously: it decomposes peracetic acid to eliminate odor, provides additional sterilization effect, and can modify surface properties of medical devices. This multi-functionality eliminates the need for separate deodorization equipment, reducing system complexity and cost while achieving effective odor control
Solution Approach 2:
The patent merges the deodorization function with the existing plasma sterilization system. Instead of adding separate deodorization equipment, the plasma generation process is configured to simultaneously achieve both sterilization and odor elimination, combining multiple functions into a single integrated system that reduces overall device complexity
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
This approach significantly reduces the adverse effects of irritating odors from peracid agents without requiring expensive deodorization equipment, achieving effective deodorization through a simple and cost-effective mechanism.
Implementation Method 1
means for generating plasma at a first predetermined portion for receiving the sterilization object in the reaction container and a second predetermined portion of a fluid passage from a neighborhood of the first predetermined portion to an exterior of the container
Implementation Method 2
the peracid agent including peracetic acid was resolved by an application of plasma to the agent after sterilization
Data Source
AI summary
A sterilization system comprises a reaction container configured to receive a sterilization object and sterilize the object; means for supplying peracetic acid as an sterilization agent into the reaction container, the peracid agent including at least peracetic acid; means for reducing a pressure in the reaction container; means for ventilating the reaction container; and means for generating plasma at a first predetermined portion for receiving the sterilization object in the reaction container and a second predetermined portion of a fluid passage from a neighborhood of the first predetermined portion to an exterior of the container. The pressure reducing means and the plasma generating means are controlled so that the plasma is maintained at the predetermined portions in a process during which the pressure in the reaction container is reduced.