RF Electrode Cartridge Layout to Prevent Skin Burn Sparks
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Solution Overview
Problem
Existing RF electrode cartridges for skin care and treatment risk causing burns due to concentrated RF energy at the edge of the electrode, which can spark against the skin, especially when the skin's curvature deviates from the electrode's contact.
Innovation Solution
The RF electrode cartridge design positions the edge of the electrode away from the skin by covering the entire bottom of the tip part and extending to its outer surface, incorporating a vibration motor for pain reduction, and ensures electrical power application only when pressed against the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the RF electrode edge is positioned inside the outer periphery of the tip bottom, then the RF electrode can be compactly arranged, but the patient may get burned by concentrated RF energy at the electrode edge
Solution Approach 1:
The harmful RF energy concentration at the electrode edge is extracted and relocated away from the skin contact area. The electrode edge is positioned to extend beyond the tip bottom outer periphery, so that when the tip contacts the skin, the electrode edge is spaced apart from the skin and cannot cause burns or sparks.
Solution Approach 2:
The tip structure acts as an intermediary between the RF electrode and the skin. By positioning the electrode edge to extend beyond the tip bottom, the tip mediates the spatial relationship, ensuring the electrode edge is separated from direct skin contact while still allowing RF energy application through the electrode surface.
2Productivity
If the RF electrode edge contacts the skin directly, then RF energy can be applied efficiently, but sparks may occur when skin curvature deviates from electrode contact
Solution Approach 1:
The problematic electrode edge is extracted from the skin contact interface. By positioning the electrode edge to extend beyond the tip bottom outer periphery, the edge is removed from the potential spark-generating contact zone, eliminating the reliability issue while maintaining treatment efficiency through the electrode surface.
Solution Approach 2:
The tip structure provides beforehand cushioning by creating a spatial buffer between the electrode edge and the skin. This pre-positioning ensures that even when skin curvature varies, the electrode edge remains spaced apart, preventing sparks before they can occur.
3Device complexity
If the RF electrode assembly covers only part of the tip bottom, then the cartridge structure is simpler, but the electrode edge cannot be positioned away from the skin
Solution Approach 1:
The RF electrode assembly is merged with the tip structure by positioning it to cover the entire tip bottom and extend to the outer surface. This combination achieves the safety function of spacing the electrode edge from the skin while maintaining a relatively simple cartridge structure through integrated design.
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
Prevents skin burns by spacing the RF energy concentration away from the skin, minimizes pain through vibration, and ensures safe, convenient treatment by controlling power application.
Implementation Method 1
an RF electrode assembly configured to apply RF energy into skin
Implementation Method 2
having a vibration motor
Data Source
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AI summary
The present invention relates to an anti-burn RF electrode cartridge for skin care and treatment and a handpiece for skin care and treatment comprising same, wherein an RF electrode body positioned at the bottom surface of a tip part is arranged to cover the entire bottom surface of the tip part and extend to the outer side surface of the tip part so as to wrap around the circumference of the outer side surface of the tip part, such that the rim end of the RF electrode, which is the part where RF energy is concentrated during a procedure, is positioned at the side surface of the tip, thereby preventing the accident of a spark being generated between the skin and the rim end of the RF electrode during a procedure and thus preventing the patient's skin from being burned during skin treatment using RF signals and greatly enhancing safety during a procedure.