Method and device for controlling output of radiofrequency ablation power, and radiofrequency ablation system

Abstract

A method and apparatus for controlling output of radio frequency ablation power, and a radio frequency ablation system. The method for controlling output of radio frequency ablation power comprises: when a starting signal is received, controlling a radio frequency energy generator to output a preset ablation power, recording ablation time, and acquiring an actual ablation parameter (), wherein the actual ablation parameter comprises the actual impedance; when the actual impedance meets any one of a first preset condition and a second preset condition, controlling the radio frequency energy generator to suspend output of the ablation power, recording sleep time, and suspending recording of the ablation time (); and if the sleep time exceeds a sleep time threshold value, controlling the radio frequency energy generator again to continue to output the ablation power, and continuing to record the ablation time (), wherein the first preset condition is: R>K×Rmin, and the second preset condition is: R>K×Rmin. According to the method, the impedance of an ablation part is enabled to be in an intermittent stably-changing state, and continuous output of radio frequency energy can be ensured, such that radio frequency ablation is relatively uniformly performed in a cyclic manner.