A microwave therapeutic apparatus with controllable effective thermal zone of ablation

Abstract

The invention discloses a microwave therapeutic instrument with a controllable ablation effective hot zone. The instrument comprises: a 915MHz microwave signal generator component, a 2450MHz microwavegenerator component, a microwave power amplifier component, a microwave power detector component, an ablation needle connection control module component, a microwave coaxial connector component, a 915MHz water-cooled microwave ablation needle component, a 2450MHz water-cooled microwave ablation needle component, a direct current power supply, a controller component, a cooling module component, anablation needle temperature measurement module and a database module. The instrument is good in microwave shielding performance, high in electrical safety, low in microwave power delay, accurate andcontrollable, and has four independent ablation channels with two frequencies, can adopt double-needle or even three-needle combined ablation when necessary, and is especially suitable for refractorymonomeric large tumors. The instrument can further be compared with a local database and an internet database to further correct an ablation strategy in an operation so as to achieve the aims of controllable ablation hot zone and the like.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a microwave therapeutic instrument with controllable effective thermal zone of ablation. Background technique [0002] Microwave ablation technology has been widely used in clinical medicine. The output power of the microwave source is controlled to achieve the effect of tip heating, denature and solidify the tumor cell protein in the lesion, and achieve the therapeutic effect of killing tumor cells. Compared with large-scale resection and strong side effects caused by chemotherapy and radiotherapy, microwave ablation technology can significantly improve the treatment efficiency and quality of life of patients. The maturity and perfection of microwave ablation technology will open up a new model for tumor treatment. [0003] However, the detailed treatment parameters of microwave ablation technology in clinical treatment are mainly based on the doctor's clinical expe...

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Problems solved by technology

[0003] However, the detailed treatment parameters of microwave ablation technology in clinical treatment mainly rely on the doctor's clinical experience to design the treatment plan when microwave ablation of tumors is performed clinically. The personal subjective factors have a great influence on the whole treatment process and effect, and there are some problems in the actual ablation process. The ablation range is small and the ablation range is uncontrollable. In addition, due to the carbonization of the center of the ablation needle and other factors, the one-time ablation success rate is very low, especially for large tumors such as liver cancer and lung cancer, resulting in surgical failure.

Or the ablation range is too large to cause damage to normal tissues

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