Intelligentized controlling means of water-cooled radio frequency tumour ablation treating system

Abstract

The invention provides an intelligent controlling means of water-cooled radio frequency tumour ablation treating system which consists of, determining radio frequency voltage output magnitude according to tissue impedance and its variation increment measured real-time, monitoring needle electrode front end temperature and boundary temperature of focus tissue and normal tissue, immediately disconnecting radio frequency source automatically when abnormal condition is found, when the real time monitored tissue impedance in operation is the initialized times of the initial impedance, or when the therapeutic time reaches initialized therapeutic time, then deciding that the fusion is finished, then closing recirculated cooling water, making the front end temperature of the needle electrode rise steeply, carrying out needle passage cauterization until the set temperature value is reached.

Description

technical field [0001] The invention relates to an intelligent control method of a water-cooled radio frequency tumor ablation treatment system, belonging to the technical field of biomedical engineering. Background technique [0002] The single-needle water-cooled radiofrequency tumor ablation treatment system is a novel radiofrequency tumor ablation treatment system. It uses circulating water cooling to reduce the temperature of the target tissue around the ablation electrode needle, and effectively avoids tissue ablation while achieving the largest range of ablation damage. charring. The intelligent control of the system is one of the key technologies of the treatment system, which ensures that the system has the advantages of minimal trauma, good curative effect, fast safety, and convenience. This type of radiofrequency tumor ablation treatment system was first launched by American RADIONICS® company at the beginning of this century. One of its most important features i...

AI Technical Summary

Problems solved by technology

This type of radiofrequency tumor ablation treatment system was first launched by American RADIONICS® company at the beginning of this century. One of its most important features is its high degree of automation. The software in the system host monitors tissue impedance and adjusts the output current and radio frequency pulse transmission mode accordingly. While maximizing the output energy, it can effectively control the increase in the impedance of the target tissue, so as to achieve the largest range of ablation damage area, but its specific control method and source program are not disclosed to maintain its technological monopoly. On the one hand, the automatic control function of the system is not yet complete. For example, it lacks an extremely important function: before the ablation is determined to be completed and the treatment is about to end, the needle tract will be automatically cauterized, thereby increasing the needle tract bleeding and tumor cells. The risks of needle tunnel planting

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