Multi-dimensional compensated ablation system temperature control system, method, device and medium

By using a multi-dimensional compensated temperature control system for the ablation system, combined with a medium texture index and an extended state observer, the output power of the radio frequency generator is dynamically adjusted, which solves the problem of temperature gradient difference caused by changes in the contact interface state and achieves precise energy transfer and uniform heating in the ablation process.

CN121606368AActive Publication Date: 2026-03-06MIANYANG LIDE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202610142537.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-02
Publication Date
2026-03-06
Estimated Expiration
2046-02-02

AI Technical Summary

Technical Problem

In existing ablation systems, temperature gradient differences caused by changes in the contact interface state can lead to sensors misjudging that the ablation temperature has been reached, thereby reducing power output and resulting in incomplete heating of the target area, which affects the ablation effect.

Method used

The temperature control system of the ablation system with multidimensional compensation combines a data acquisition module, a feature analysis module, a state observation module, a compensation calculation module, and a closed-loop control module. It uses the medium texture index and an extended state observer to correct energy transmission loss in real time and dynamically adjust the output power of the radio frequency generator.

Benefits of technology

It achieves precise control of energy transfer in non-ideal contact environments, ensuring robust temperature control in the ablation zone and uniformity of ablation effect, and avoiding incomplete heating caused by contact thermal resistance.

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Abstract

The invention relates to the technical field of temperature control, in particular to a multi-dimensional compensation ablation system temperature control system, method and device and a medium. The system calculates a medium texture index representing the structural change of the load medium by synchronously acquiring electrical parameters and ultrasonic image data; constructing an anti-interference control model comprising an extended state observer, and defining energy transmission loss caused by contact thermal resistance as an extended state variable; calculating an adaptive correction factor based on the texture index, dynamically correcting the state updating process of the observer to obtain an energy loss correction estimated value, and constructing a compensation control model to adjust the output power according to the energy loss correction estimated value; according to the invention, the technical problem of incomplete heating caused by false high temperature of the sensor and system misjudgment due to state deterioration of the contact interface is effectively solved; accurate reconstruction and closed-loop compensation of effective heat flow in a non-ideal contact environment are realized, sufficient energy penetration can still be maintained even if contact thermal resistance is sharply increased, and the integrity of an ablation area is guaranteed.
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