Stick-Type Plasma Source Reciprocating Scanning for Uniformity
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Solution Overview
Problem
Current plasma generation apparatuses face challenges in achieving uniform large-area low-temperature plasma generation, with direct plasma types having high treatment effects but low uniformity and indirect types being less effective for large areas, and both types risking skin damage and electric shock due to high temperature and voltage.
Innovation Solution
A plasma generation apparatus with a stick-type plasma source that performs reciprocating movements within a housing, using a variable window and adjustable electrodes to emit a wide, uniform plasma plume, reducing thermal energy transfer and electric shock risk by scanning the target area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct plasma type is used, then treatment effect is improved, but plasma uniformity deteriorates
Solution Approach 1:
The plasma generation apparatus divides the treatment area into multiple zones with different electrode configurations. The ground electrode is segmented into multiple independent sections that can be independently controlled, allowing each zone to generate plasma according to the specific requirements of the target area, thus achieving both high treatment effect and uniform plasma distribution.
Solution Approach 2:
The apparatus implements local quality control by allowing different regions of the ground electrode to have different electrical characteristics. Each segment can be independently adjusted to match the specific treatment needs of different body parts, ensuring optimal treatment effect while maintaining plasma uniformity across the entire treatment area.
2Manufacturing precision
If indirect plasma type is used, then plasma uniformity is improved, but treatment effect deteriorates
Solution Approach 1:
The invention merges the advantages of both direct and indirect plasma types by combining a high voltage electrode for plasma generation with a segmented ground electrode for direct contact treatment. This hybrid configuration allows the apparatus to achieve the plasma uniformity of indirect type while maintaining the high treatment effect of direct type.
3Area of stationary object
If plasma is generated for large area, then treatment coverage is improved, but plasma uniformity deteriorates
Solution Approach 1:
The ground electrode is divided into multiple independent segments that can be independently controlled. This segmentation allows each zone to generate plasma according to the specific requirements of its target area, ensuring uniform plasma distribution across the entire large treatment area while maintaining high treatment effectiveness in each local zone.
4Productivity
If high voltage is applied, then plasma generation efficiency is improved, but electric shock risk increases
Solution Approach 1:
The apparatus uses a segmented ground electrode as an intermediary between the high voltage source and the target. This intermediary structure allows the high voltage to be distributed across multiple isolated segments, reducing the electric shock risk while maintaining plasma generation efficiency. The segmented design ensures that even if one segment fails, the others remain isolated and safe.
5Reliability
If plasma source contacts target, then treatment effect is improved, but skin damage risk increases
Solution Approach 1:
The plasma generation apparatus employs a dynamic control system that adjusts the plasma generation parameters in real-time based on the treatment stage. During the plasma generation phase, high power is applied for effective treatment, while during the cooling phase, the system automatically reduces power to prevent skin damage. This dynamic adjustment ensures high treatment effect while minimizing skin damage risk.
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 apparatus achieves uniform large-area low-temperature plasma generation, improving treatment efficacy while minimizing thermal energy transfer and electric shock risk, enabling effective skin tissue regeneration and sterilization without direct contact.
Implementation Method 1
a stick type plasma source provided in the housing to generate a plasma toward the window
Implementation Method 2
a power transmission unit spaced apart from the coupling unit to transmit a power to the plasma source
Data Source
AI summary
Provided is a plasma generation apparatus including: a housing in which a window is defined at one side in a first direction; a stick type plasma source provided in the housing to generate plasma toward the window; and a driving unit coupled to the plasma source to allow one end of the plasma source to perform a reciprocating movement in a second direction that is a longitudinal direction of the window.