Multi-Frequency RF Tissue Treatment Apparatus

Solution Overview

Problem

Conventional RF energy treatment devices for skin have low treatment efficiency due to fixed frequency application, which limits their ability to effectively denature tissue and promote regeneration.

Innovation Solution

A treatment apparatus and method that adjusts RF energy frequency based on tissue depth and temperature, using multiple frequencies to deliver RF energy through a pulse train, allowing for targeted heating of the epidermis, dermis, and fat layers, thereby improving treatment efficiency and promoting collagen regeneration and fat cell apoptosis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If RF energy is delivered at a fixed frequency, then the device structure is simple, but the treatment efficiency is low

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic frequency adjustment capability in the RF energy delivery system. The controller dynamically switches between multiple frequencies (e.g., 1-10 MHz, 10-100 kHz) based on real-time temperature feedback and treatment depth requirements, transforming the static fixed-frequency system into a dynamic multi-frequency system that adapts to varying tissue conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the frequency parameter of RF energy based on treatment depth and temperature conditions. Different frequency ranges are selected to target specific tissue layers (epidermis, dermis, subcutaneous fat), and frequency adjustments are made in response to temperature monitoring, optimizing energy delivery for different treatment stages and tissue types

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If multiple frequencies of RF energy are used to target different tissue depths, then the treatment precision is improved, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the RF energy delivery into multiple frequency bands, each optimized for specific tissue depths. The controller manages distinct frequency ranges (1-10 MHz for superficial layers, 10-100 kHz for deeper layers) and switches between them based on treatment requirements, allowing precise targeting of different tissue layers without requiring a completely complex system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent incorporates temperature feedback from sensors that monitor tissue temperature in real-time. The controller uses this feedback to adjust frequency selection and power delivery, ensuring precise treatment of target depths while preventing overheating. The feedback mechanism enables adaptive frequency adjustment based on actual tissue response

Inventive Principle:
Principle #23Feedback

3Reliability

If RF energy delivery is adjusted according to pulse train and treatment time, then the treatment effectiveness is improved, but the control complexity increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs pulse train delivery with periodic on-off cycles of RF energy. The controller manages pulse duration, interval, and duty cycle to optimize tissue heating and collagen stimulation. Different pulse patterns are applied at different treatment stages, and the periodic action allows thermal energy to diffuse to target depths while preventing excessive surface heating

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent applies preliminary low-frequency RF energy delivery to heat and prepare deeper tissue layers before applying higher-frequency energy for superficial treatment. This preliminary action of heating subcutaneous fat and dermis before epidermal treatment enables more effective and safer multi-depth treatment by pre-conditioning the tissue

Inventive Principle:
Principle #10Preliminary action

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 enhances treatment efficiency by optimizing RF energy delivery, leading to improved skin regeneration, collagen production, and fat reduction, resulting in enhanced skin contour and appearance.

Implementation Method 1

a treatment apparatus for denaturing tissue using RF(Radio-Frequency) energy

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

devices for delivering RF energy to tissue for therapeutic purposes

Methodology Applied
Scientific EffectDielectric heating: Dielectric Heating

Data Source

PatentUS20240238035A1Treatment apparatus for denaturing tissue using RF energy, control method thereof, and treatment method using the same
Publication Date: 2024.07.18
  • US20240238035A1 patent drawing
  • US20240238035A1 patent drawing
  • US20240238035A1 patent drawing

AI summary

Disclosed are a treatment apparatus for denaturing tissue using RF energy having multiple frequencies, a control method thereof, and a treatment method using the same, in which skin treatment is performed using the RF energy with multiple-frequencies different in depth of delivering the RF energy into the tissue. The frequencies of the RF energy may be modulated by the RF modulator. Additionally, the operation of one of several RF generators, which can generate RF energy at the frequency of the RF energy, is determined by the selection of one among multiple RF generators.