Segmented RF Skin Treatment Tip for Uniform Current Density
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Solution Overview
Problem
Conventional skin treatment devices using RF energy suffer from edge effects, where current is concentrated at the electrode edges, leading to excessive tissue damage.
Innovation Solution
A tip module for a skin treatment device with an electrode configuration divided into central, intermediate, and outer electrodes, where the intermediate and outer electrodes are further divided into parts along concentric round paths, maintaining current density within a preset range to minimize edge effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional non-invasive electrode is used to transmit RF energy to skin tissue, then the treatment can be performed without contact electrodes, but current is concentrated at the edge of the electrode causing excessive tissue damage
Solution Approach 1:
The electrode is divided into multiple regions (central electrode, intermediate electrode, outer electrode) with different areas. The intermediate and outer electrodes are further divided into multiple parts along concentric round paths, creating a segmented structure that distributes current density more uniformly across the treatment area and reduces current concentration at the edges.
Solution Approach 2:
Different regions of the electrode are designed with different areas to achieve uniform current density. The central electrode has a larger area than the outer electrode, and the intermediate electrode has an area between them. This local variation in electrode area ensures that current density remains within a preset range across all regions, preventing excessive tissue damage at the edges.
2Area of stationary object
If the electrode area is increased to cover more treatment area, then more skin can be treated, but current density becomes uneven with higher concentration at edges
Solution Approach 1:
The electrode is segmented into multiple regions with progressively smaller areas from center to periphery. This segmentation allows the overall electrode to cover a large treatment area while maintaining uniform current density through the area gradient of individual regions.
Solution Approach 2:
The electrode area parameter is varied across different regions to maintain optimal current density. The central electrode has the largest area, the intermediate electrode has a medium area, and the outer electrode has the smallest area. This parameter change ensures current density remains within a preset range while covering extensive treatment area.
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 minimizes edge effects, preventing excessive tissue damage and enabling optimized skin treatment by maintaining uniform current density across the treatment area.
Implementation Method 1
As a method for heating skin tissue, a method of heating by transmitting RF energy is widely used
Data Source
AI summary
The present disclosure relates to a tip module that divides electrodes into a central region, an intermediate region, and an outer region and minimizes the size of the individual electrodes in the outer region to uniformize the overall current density; a skin treatment device using RF energy including the same; and a skin treatment method using RF energy.