High-Frequency Cosmetic Device Control by Skin Suction Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional cosmetic procedure devices risk causing burns due to insufficient skin suction, leading to a narrow contact area between the electrode and skin, especially when used by unskilled individuals.

Innovation Solution

A method for controlling a cosmetic procedure device that includes detecting the height of suctioned skin and determining whether to apply high frequency based on the detected height, ensuring a sufficient contact area between the electrode and skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high frequency energy is applied when skin suction is insufficient, then the cosmetic procedure can be performed, but the contact area between electrode and skin becomes narrow causing burn risk

Engineering Contradiction:
Improvecosmetic procedure performanceVSAvoidskin burn risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent measures the skin suction height before applying high frequency energy. By performing this preliminary measurement, the system determines whether the skin is sufficiently suctioned into the header part, and only allows high frequency application when the contact area is adequate, thereby preventing burns before they can occur

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the measured skin suction height is used to control the high frequency application. The system continuously monitors whether the skin contact area meets safety thresholds and adjusts or prevents high frequency energy delivery based on this feedback, ensuring safe operation throughout the procedure

Inventive Principle:
Principle #23Feedback

2Reliability

If skin suction pressure is increased to ensure adequate contact area, then burn risk is reduced, but the complexity of controlling suction pressure increases

Engineering Contradiction:
Improvesafety of high frequency applicationVSAvoidsuction pressure control
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical pressure control systems with a simpler measurement and control approach. Instead of relying on precise mechanical regulation of suction pressure, the system uses height measurement of the suctioned skin to determine adequacy of contact area, substituting mechanical complexity with a measurement-based control strategy

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 burns by ensuring the high frequency application unit operates only when the contact area is adequate, enhancing user safety and treatment effectiveness.

Implementation Method 1

forming a negative pressure in a suction space so as to suction skin into the suction space

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Implementation Method 2

applying high frequency to the contacted skin S without stimulating the sensory nerves and motor nerves, and the fat decomposition effect of the fat layer of the skin can be obtained through the thermal effect

Methodology Applied
Scientific EffectHigh frequency energy: Dielectric Heating

Implementation Method 3

the fat decomposition effect of the fat layer of the skin can be obtained through the thermal effect

Methodology Applied
Scientific EffectThermal effect: Heating

Data Source

PatentEP4643940A1Cosmetic procedure device control method
Publication Date: 2025.11.05 APR CO LTD
  • EP4643940A1 patent drawingFigure 1
  • EP4643940A1 patent drawingFigure 2
  • EP4643940A1 patent drawingFigure 3

AI summary

A cosmetic procedure device control method is disclosed. The cosmetic procedure device control method according to one aspect of the present invention comprises: a skin suction step of forming negative pressure in a suction space so as to suction the skin into the suction space; a skin height detection step of detecting the height of the skin suctioned into the suction space; and a high frequency application determination step of determining whether to operate a high frequency application unit according to the height of the skin determined in the skin height detection step, wherein the skin height detection step can detect the number of electrode ends that are in contact with the skin and conduct electricity from among a plurality of electrode ends of the high frequency application unit.