Monopolar RF Electrode Tapping for Skin Lesion Removal
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Solution Overview
Problem
Existing cosmetic skin treatments, such as laser-based methods, often require multiple sessions, can be unpredictable, and may result in scarring or tissue damage due to invasive procedures, especially when addressing facial skin laxity and lesions.
Innovation Solution
A monopolar electrode with a flat, blunt tip is used to deliver non-ablative radio-frequency energy in an intermittent tapping motion, combined with wet gauze wiping, to target and remove skin lesions while minimizing heat distribution to surrounding tissue, using a highly conductive silver alloy and low power settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If laser-based treatments are used to reduce facial creases, then skin rejuvenation is achieved, but multiple treatments are required and results may regress or be unpredictable
Solution Approach 1:
The patent changes the fundamental parameter from laser-based optical energy to radiofrequency electromagnetic energy, operating at different frequencies and mechanisms. This parameter change enables single-treatment efficacy with sustained results, eliminating the need for multiple laser sessions while providing predictable outcomes through controlled thermal coagulation of dermal tissues.
Solution Approach 2:
The invention replaces the laser-based optical system with a radiofrequency electromagnetic system that directly generates heat through tissue resistance. This substitution eliminates the limitations of laser treatments by using a different physical mechanism that penetrates deeper into tissues and creates more stable, long-lasting results through controlled thermal effects.
2Productivity
If invasive procedures are used to address skin laxity and lesions, then immediate results are achieved, but scarring and tissue damage occur
Solution Approach 1:
The patent applies local quality by concentrating radiofrequency energy precisely at the treatment site through the electrode tip, creating localized thermal coagulation only where needed. The surrounding healthy tissue remains unaffected due to the focused energy delivery and controlled thermal diffusion, eliminating scarring while maintaining treatment efficiency.
Solution Approach 2:
The invention uses periodic intermittent contact between the electrode and skin surface, applying radiofrequency energy in controlled pulses rather than continuous contact. This periodic action allows heat dissipation between pulses, preventing excessive temperature buildup and tissue damage while still achieving effective lesion removal through cumulative thermal effects.
3Productivity
If pressure is applied on the handpiece holding the loop electrode, then lesion removal is achieved, but deep divots are created causing scarring and delayed healing
Solution Approach 1:
The patent replaces the mechanical cutting action of loop electrodes with radiofrequency thermal coagulation. The electrode tip gently contacts or hovers near the lesion surface, and radiofrequency energy thermally coagulates and removes the lesion without mechanical cutting. This eliminates the need for pressing pressure that causes deep divots, maintaining skin surface integrity while achieving effective lesion removal.
4Productivity
If excessive tissue trauma is caused by surgical tools, then lesion removal is achieved, but increased fibrosis and scarring result
Solution Approach 1:
The invention changes the fundamental parameter from mechanical cutting or scraping to radiofrequency thermal coagulation. This parameter change enables lesion elimination through controlled thermal effects that coagulate proteins and destroy abnormal tissue without causing the mechanical trauma that leads to fibrosis and scarring. The thermal energy is precisely controlled to affect only the lesion while preserving surrounding healthy tissue architecture.
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
This method effectively removes skin lesions with reduced risk of scarring, pain, and tissue damage, allowing for non-invasive, efficient, and safe procedures that can be performed by both skilled surgeons and less trained professionals, with minimal disruption to the patient's activities.
Implementation Method 1
radiofrequency energy in a non-ablative fashion that generates heat through resistance in the dermis and subcutaneous tissue
Implementation Method 2
generates heat through resistance in the dermis and subcutaneous tissue
Implementation Method 3
the distribution of the energy combined with the intermittent application of the electrode end tends to prevent over-heating of the surrounding skin tissue
Data Source
AI summary
An electrode and procedure for removing skin lesions or blemishes comprising an electrode with a flat blunt active end which is applied to the skin lesion or blemish, while RF electrosurgical currents are applied to the electrode, in an up and down tapping motion in such manner that contact between the skin and the active electrode end is intermittent. Preferably, after a small number of skin taps with the electrode end, the tapped area is wiped with a wet gauze or cloth, and the procedure of intermittent tapping with the RF electrode interrupted with wet wipes is continued until the blemish disappears.