Fractional RF Skin Tip Switching for Consistent Low-Pain Heating
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Solution Overview
Problem
Existing RF energy-based skin treatment devices deliver energy simultaneously to multiple electrodes, leading to pain and inconsistency due to tissue impedance variations, and are limited in flexibility for different treatment tip sizes and shapes.
Innovation Solution
A system with a switching module that sequentially switches electrical current to individual electrodes, allowing fractional RF treatment with controlled energy delivery, reducing pain and ensuring consistent energy distribution across the treatment tip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all electrodes are activated simultaneously to deliver RF energy to multiple locations, then treatment efficiency is improved, but pain increases and energy distribution becomes inconsistent
Solution Approach 1:
The treatment process is segmented into multiple sequential phases, with different subsets of electrodes activated in each phase. Instead of activating all electrodes simultaneously, the system divides the electrode array into groups and activates them sequentially, reducing the number of active electrodes at any given moment while maintaining overall treatment coverage.
Solution Approach 2:
The system employs periodic activation patterns where electrodes are switched on and off in a cyclic manner. Different electrode groups are activated in alternating time intervals, creating a periodic treatment pattern that reduces continuous pain exposure while maintaining treatment effectiveness over the complete cycle.
2Area of stationary object
If all electrodes are connected in parallel to deliver energy simultaneously, then treatment coverage is improved, but energy distribution consistency deteriorates due to tissue impedance variations
Solution Approach 1:
The electrode array is segmented into multiple independent groups that can be activated separately. This segmentation allows the system to manage impedance variations by treating different electrode groups in isolation, ensuring consistent energy delivery to each group while maintaining broad treatment coverage through sequential activation of all groups.
Solution Approach 2:
The system dynamically switches between different electrode group configurations based on real-time impedance conditions. By making the electrode activation pattern dynamic rather than static, the system adapts to tissue impedance variations and maintains consistent energy distribution across different treatment areas.
3Speed
If RF energy is delivered to multiple locations simultaneously, then treatment speed is improved, but flexibility for different treatment tip sizes and shapes deteriorates
Solution Approach 1:
The electrode activation pattern is made dynamic and reconfigurable, allowing the system to adapt to different treatment tip sizes and shapes by selecting appropriate electrode subsets. The switching module enables rapid reconfiguration of active electrodes to match different treatment requirements while maintaining high treatment speed through efficient sequential activation.
Solution Approach 2:
The system achieves multi-functionality by using a single electrode array that can be configured for different treatment tip applications. Through the switching module, the same physical electrodes can be arranged in different activation patterns to accommodate various treatment tip sizes and shapes, providing universal applicability.
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 provides pain-reduced, consistent, and adaptable RF treatment by sequentially activating electrodes, maintaining effective energy distribution and impedance stability across varying tip sizes and shapes.
Implementation Method 1
The electrical current is delivered to the tissue though an array of electrodes... the electrical energy can be delivered to multiple locations in the tissue simultaneously... at least one of said electrodes 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
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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.