RF Ablation Instrument Dynamic Power Control Feedback

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Solution Overview

Problem

Existing radio-frequency ablation instruments face issues with low accuracy and poor stability in continuous energy output, affecting their effectiveness in medical treatments.

Innovation Solution

A control method and apparatus for radio-frequency ablation instruments that acquire current ablation parameters, calculate the necessary power output, and adjust the input control voltage to optimize radio-frequency energy delivery, ensuring accurate and stable ablation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If typical radio-frequency ablation instruments are used, then the ablation function is provided, but the output energy accuracy is low and continuous output stability is poor

Engineering Contradiction:
Improveoutput energy accuracyVSAvoidcontinuous output stability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent implements a feedback control mechanism where the control unit continuously monitors the actual power output and adjusts the radio frequency power accordingly. The control unit receives feedback about the current ablation parameters and uses this information to calculate and adjust the power value for the next cycle, ensuring accurate and stable energy output throughout the ablation process.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent employs dynamic adjustment of radio frequency power by continuously updating the power values based on real-time ablation parameters. The system transitions from static power delivery to dynamic power modulation, where the power output is continuously optimized based on feedback from the ablation process, improving both accuracy and stability.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If radio-frequency energy is output to ablate target object, then ablation function is achieved, but output accuracy and continuous output stability are insufficient

Engineering Contradiction:
Improveablation precisionVSAvoidcontinuous output stability
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The control unit uses feedback from detected ablation parameters to continuously adjust and optimize the radio frequency power output. This closed-loop control ensures that the ablation process maintains high precision while achieving stable continuous output, as the system automatically compensates for any deviations in real-time.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-adjustment by automatically calculating the next power value based on current ablation parameters without external intervention. The control unit autonomously optimizes the power delivery to maintain precise and stable ablation, enabling the system to self-correct and maintain optimal performance throughout the procedure.

Inventive Principle:
Principle #25Self-service

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 improves the accuracy and stability of radio-frequency energy output, ensuring effective ablation by dynamically adjusting energy delivery based on real-time parameters, even during disturbances.

Implementation Method 1

a radio-frequency output apparatus 20 configured to output the radio-frequency energy according to the input control voltage

Methodology Applied
Scientific EffectRadio-frequency heating: Dielectric Heating

Implementation Method 2

calculating a power value needed to be outputted in a next cycle according to the current ablation parameter; acquiring an input control voltage corresponding to the power value according to the power value needed to be outputted

Methodology Applied
Scientific EffectElectrical power control: Ohm's Law

Data Source

PatentUS20230263566A1Radio-frequency ablation instrument and control method and control apparatus thereof, system, electronic device and storage medium
Publication Date: 2023.08.24 HANGZHOU NOYA MEDTECH CO LTD
  • US20230263566A1 patent drawing
  • US20230263566A1 patent drawing
  • US20230263566A1 patent drawing

AI summary

A radio-frequency ablation instrument (100) and a control method and a control apparatus (30) thereof, a system, an electronic device (90) and a storage medium are provided. The control method includes: acquiring at least one current ablation parameter (S701); calculating a power value needed to be outputted in a next cycle according to the current ablation parameter (S702); acquiring an input control voltage corresponding to the power value according to the power value needed to be outputted (S703); and controlling the radio-frequency energy output according to the input control voltage (S704).