Multi-Electrode RF Skin Device Continuous Energy
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Solution Overview
Problem
Existing skin rejuvenation technologies using RF energy are inefficient due to single-phase energy transmission, resulting in periods of no energy transfer to the skin, and previous methods have not effectively maintained consistent energy delivery for optimal cosmetic results.
Innovation Solution
A device with multiple pairs of RF electrodes that transmit RF energy shifted in phase relative to each other, ensuring continuous energy transfer to the skin, allowing for customizable waveforms, frequencies, and phases to enhance skin rejuvenation, tightening, and reducing wrinkles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If single-phase RF energy is transmitted to the skin, then the device structure is simple, but energy transfer is interrupted periodically resulting in inefficient treatment
Solution Approach 1:
The RF energy transmission system is segmented into multiple independent electrode pairs, each capable of transmitting RF energy independently. This segmentation allows continuous energy delivery as one electrode pair can operate while another is in its zero-crossing phase, thereby resolving the contradiction between transmission efficiency and system simplicity.
Solution Approach 2:
Multiple electrode pairs transmit RF energy with different phase shifts, creating a periodic pattern where energy transmission is continuously maintained. The phase-differentiated periodic actions of individual electrode pairs combine to achieve essentially continuous energy transfer to the treatment region, improving productivity without excessive complexity.
2Reliability
If multiple pairs of RF electrodes with phase-shifted signals are used, then continuous energy transfer is achieved, but the device complexity increases
Solution Approach 1:
The system changes the phase parameter of RF signals transmitted by different electrode pairs. By introducing controlled phase shifts (e.g., 90-degree or 180-degree offsets) between electrode pairs, the system achieves continuous energy delivery through parameter differentiation rather than through complex structural modifications, thereby improving reliability while managing complexity.
Solution Approach 2:
The control system is configured in advance with predetermined phase relationships between electrode pairs. This preliminary setup of phase parameters allows the system to automatically maintain continuous energy transfer without requiring real-time complex calculations or adjustments, reducing the operational complexity while ensuring reliable continuous delivery.
3Use of energy by moving object
If RF energy is transmitted with zero-crossing periods, then the waveform is simple, but there are periods when no energy is transferred to the skin
Solution Approach 1:
The system merges the output of multiple electrode pairs with different phase relationships into a single treatment region. By combining these phase-differentiated RF energy streams, the system ensures that when one electrode pair passes through its zero-crossing point, another electrode pair is at its peak transmission phase, thereby merging their contributions to achieve continuous energy transfer and improved treatment effectiveness.
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 device provides continuous and efficient RF energy delivery, improving skin rejuvenation by maintaining consistent energy transfer, enhancing skin elasticity, reducing wrinkles, and providing cosmetic improvements such as skin tightening and cellulite reduction.
Implementation Method 1
The most common method of heating the dermis, is the use of RF radiation, applied by antenna or electrodes
Implementation Method 2
RF generating means for generating N independent RF signals of predetermined waveforms, frequencies, amplitudes, and relative phases
Data Source
AI summary
A device for improving the cosmetic appearance of the skin is disclosed, wherein said device comprises RF generating means for generating N independent RF signals of predetermined waveforms, frequencies, amplitudes, and relative phases; control means for controlling the output of said RF generating means, said control means in communication with said RF generating means; N pairs of RF electrodes, each of said pairs in independent communication with said RF generating means, said RF electrodes configured to transmit RF energy to said skin; and an electrically insulating casing adapted to hold said RF electrodes such that said RF electrodes may be placed in simultaneous physical contact with said skin.