Fractional RF Skin Treatment Tip with Sequential Electrode Activation
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Solution Overview
Problem
Existing RF energy-based skin treatment devices are limited by simultaneous energy delivery to multiple electrodes, leading to pain and impedance variations, and lack flexibility in accommodating different treatment tip sizes and types.
Innovation Solution
A system with a treatment tip comprising multiple electrodes, each with protruding conducting elements, and a switching module that sequentially connects electrodes to an energy generator, allowing for fractional RF treatment with adjustable voltage and pulse duration to minimize pain and adapt to varying skin conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all electrodes are activated simultaneously to deliver energy to multiple locations in the tissue, then treatment efficiency is improved, but pain increases significantly
Solution Approach 1:
The treatment process is segmented into multiple phases where different subsets of electrodes are activated in sequence rather than all simultaneously. The controller divides the N electrodes into groups and activates them in a staged manner, allowing heat to dissipate between activations and reducing overall pain while maintaining treatment effectiveness.
Solution Approach 2:
The system employs periodic activation of electrode groups with controlled intervals between activations. This periodic action allows tissue to cool down between energy deliveries, reducing cumulative thermal damage and pain sensation, while still achieving the desired treatment effect over the complete treatment cycle.
2Area of stationary object
If all electrodes are connected in parallel to deliver current, then simultaneous treatment coverage is improved, but current distribution becomes inconsistent due to tissue impedance variations
Solution Approach 1:
The electrode array is segmented into multiple independent groups that can be activated separately. By controlling subsets of electrodes rather than all electrodes simultaneously, the system can monitor and adjust current delivery to each group, compensating for impedance variations and achieving more uniform current distribution across the treatment area.
Solution Approach 2:
The system incorporates impedance sensing capability that provides feedback on tissue conditions at each electrode location. Based on this feedback, the controller adjusts the activation pattern and energy delivery to each electrode group, ensuring consistent current distribution despite variations in tissue impedance across different anatomical regions.
3Stability of the object's composition
If the device is adapted to operate over a limited range of impedances, then device stability is improved, but adaptability to different treatment tips and skin types decreases
Solution Approach 1:
The device employs dynamic impedance matching and adaptive control algorithms that automatically adjust operating parameters based on real-time impedance measurements. This dynamic adaptation allows the device to maintain stable operation across a wide range of impedance values by continuously optimizing energy delivery, thereby supporting various treatment tip configurations and skin types without compromising stability.
Solution Approach 2:
The system changes multiple operational parameters simultaneously including voltage, current, pulse duration, and electrode activation patterns to adapt to different impedance conditions. By adjusting these parameters dynamically, the device maintains optimal performance across diverse treatment scenarios and hardware configurations.
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 system reduces pain and ensures consistent energy delivery across the treatment area, adapting to different skin conditions and treatment tip sizes, while maintaining effective skin heating and resurfacing.
Implementation Method 1
at least one said electrode is configured to apply energy to said at least one discrete skin volume so as to heat said at least one discrete skin volume
Data Source
AI summary
A system and method for treating the skin by heating at least one discrete skin volume, comprising at least one treatment tip reversibly connectable to at least one applicator. The treatment tip comprises one or more electrodes, with the electrodes having one or more spaced apart protruding conducting elements. The protruding conducting elements are characterized by dimensions of height A and hypotenuse B, where the ratio A/B is in a predetermined range, and the protruding conducting elements penetrate the skin surface at discrete locations. The electrodes are configured to apply energy to skin volumes around the discrete locations so as to heat the skin volumes. The applicator comprises an energy generator configured to apply energy to the skin volumes by means of the electrodes and the spaced apart protruding conducting elements.