Multi-pole RF Device Switching Circuit for Uniform Energy Distribution
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Solution Overview
Problem
Existing RF therapeutic apparatuses face limitations in therapeutic range due to fixed electrode designs and uneven heat distribution between RF power supply terminals, affecting the uniformity of RF energy output and therapeutic effectiveness.
Innovation Solution
A multi-pole RF device with a first and second switch switching circuit and a controller that allows switching between unipolar and bipolar modes, ensuring uniform RF energy output by alternately connecting the therapeutic electrode and return electrode to the RF power supply interfaces, thereby achieving balanced heat distribution in both parallel and vertical directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed electrode design is used in the RF therapeutic apparatus, then the device structure is simple, but the therapeutic range is limited and the RF energy output uniformity is poor
Solution Approach 1:
The therapeutic electrode is divided into multiple electrode slices (first electrode slice, second electrode slice, third electrode slice, etc.), each capable of being independently connected to different terminals of the RF power supply. This segmentation allows the device to treat different regions and depths of tissue by selectively activating specific slices, thereby expanding the therapeutic range without requiring multiple separate devices.
Solution Approach 2:
The electrode configuration is made dynamic through switch switching circuits that can reconfigure the connections between electrode slices and RF power supply terminals in real-time. The controller dynamically switches between unipolar and bipolar modes, adjusting which electrode slices are connected to the first terminal and which are connected to the second terminal, allowing adaptation to different treatment requirements.
2Manufacturing precision
If the RF power supply outputs RF energy through fixed terminals, then the circuit design is simple, but the heat distribution is uneven and the RF energy output uniformity is poor
Solution Approach 1:
The controller implements periodic switching between unipolar and bipolar modes through the switch switching circuits. By alternately switching the connection configurations at regular intervals, the system balances the heat generation and energy distribution across different electrode slices, ensuring uniform RF energy output and preventing localized overheating.
Solution Approach 2:
The system incorporates feedback mechanisms where the controller monitors the treatment process and adjusts the switching patterns accordingly. Based on detected parameters, the controller optimizes the switching between different electrode configurations to maintain uniform energy distribution and appropriate heat levels throughout the treatment area.
3Adaptability or versatility
If single electrode mode is used, then the device operation is simple, but the therapeutic range is limited
Solution Approach 1:
The RF therapeutic apparatus is designed with multi-functionality by incorporating both unipolar and bipolar electrode modes within a single device. The same electrode slices can operate in unipolar configuration for deeper tissue treatment or in bipolar configuration for more localized treatment, allowing the device to handle multiple treatment scenarios without requiring separate specialized devices.
Solution Approach 2:
The device dynamically transitions between unipolar and bipolar modes based on treatment requirements. The controller manages the switching between different operational configurations, allowing the operator to select the appropriate mode for each treatment scenario while maintaining operational simplicity through automated control.
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 enables uniform RF energy output across the therapeutic region, enhancing the therapeutic effect by ensuring consistent energy distribution in three-dimensional space, improving the therapeutic efficiency and user convenience.
Implementation Method 1
The RF energy stimulates the subcutaneous tissue to allow the polarized water molecules in the tissue to move at a high speed, and a thermal effect is formed
Data Source
AI summary
Disclosed are a multi-pole radio frequency (RF) device, a method for controlling multi-pole RF device, and an RF therapeutic apparatus. The multi-pole RF device includes an RF power supply, a return electrode, a therapeutic electrode, a controller, a first switch switching circuit, and/or a second switch switching circuit. The controller controls the third input terminal and the fourth input terminal of the second switch switching circuit to be switchably connected to the third output terminal and the fourth output terminal. In the unipolar mode, the controller controls the first output terminal and the second output terminal to be electrically connected to the therapeutic electrode and the return electrode respectively. In the bipolar mode, the controller controls the first output terminal and the second output terminal to be connected to at least one of the plurality of electrode slices respectively.