Adaptive RF Energy Control for Tube Temperature Variance
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Solution Overview
Problem
Existing RF energy generators for denervation procedures fail to account for the varying characteristics of individual body tubes, leading to potential tissue damage or ineffective treatment due to fixed PID control constants.
Innovation Solution
An RF energy generator that adjusts PID control constants based on real-time temperature variance of the body tube, using a receiving unit to collect data, a controller to calculate and determine RF energy intensity, and an output unit to deliver energy accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed PID control constants are used for all patients, then the control system is simple and easy to implement, but the treatment effectiveness varies and may cause tissue damage or ineffective denervation
Solution Approach 1:
The patent implements dynamic adjustment of PID control constants based on real-time temperature variance feedback. The controller continuously monitors temperature changes and adapts the proportional, integral, and derivative constants according to the specific thermal characteristics of each patient's anatomy, transitioning from static fixed constants to dynamic adaptive constants that optimize treatment for each individual case
Solution Approach 2:
The system incorporates a feedback mechanism where temperature variance is continuously measured and fed back to the controller. This feedback loop enables the controller to adjust PID constants in real-time based on actual thermal response, creating a closed-loop control system that improves treatment reliability while maintaining implementation feasibility
2Manufacturing precision
If PID control constants are customized for each patient's tube characteristics, then treatment precision is improved, but the control system becomes more complex
Solution Approach 1:
The system employs self-service through automatic identification of tube characteristics and autonomous adjustment of PID constants. The controller automatically measures temperature variance, identifies the specific anatomical characteristics of each patient's tube, and self-adjusts the control parameters without requiring manual calibration or complex user intervention, thereby achieving high precision while limiting complexity growth
Solution Approach 2:
The patent utilizes parameter changes by modifying PID control constants based on measured temperature variance characteristics. The system dynamically changes the proportional, integral, and derivative parameters according to the specific thermal response observed during the procedure, enabling precise adaptation to individual patient anatomy through parameter optimization rather than structural complexity
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
Enables precise and safe denervation by regulating RF energy output based on tube state, ensuring consistent treatment efficacy across varying body conditions.
Implementation Method 1
an RF energy generator that outputs RF energy to an electrode apparatus for blocking or controlling nerves in body
Data Source
AI summary
An RF energy generator that outputs RF energy to an electrode apparatus for blocking or controlling nerves in body includes: a receiving unit configured to receive temperature data of a tube in a body from the electrode apparatus; a controller configured to calculate a temperature value of the tube in the body based on the received temperature data, calculate a temperature variance of the tube in the body based on the calculated temperature value of the tube in the body, and determine an intensity of RF energy through PID control based on the temperature variance of the tube; and an output unit configured to output the RF energy to the electrode apparatus based on the determined intensity of RF energy.