Abstract
RFA (radiofrequency ablation) is a new type of tumor treatment in recent decades. It has excellent effects in treating certain tumors. Radiofrequency ablation technology is a physical-type treatment technology. At present, RF ablation technology has been very successful in medical clinics. Radiofrequency ablator, as a kind of medical device, implemented directly on the organs, which must ensure good stability and high safety. RF ablators can work in temperature control mode. In this mode, the accuracy of temperature sampling is critical. When working in temperature control mode, the ablator must monitor the temperature of the polar needle tip in real time. In this paper, we study the temperature sampling system for RF ablators, including hardware circuit design and filtering algorithm design.
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