Hangzhou Nuo Cheng Medical Instrument Co., Ltd.

Xinjiong Qiu

Tingchao Zhang

Liwen Liu

Bobo Peng

Yang Li

Daoyang Liu

Xiongzhi Wang

Shanfeng Hu

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.

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

The present disclosure provides a treatment method for hypertrophic cardiomyopathy applied to an ablation system comprising an ablation needle assembly and an energy generating device coupled to the ablation needle assembly. The treatment method comprises: advancing a distal end of the ablation needle assembly from an outside of a body through an intercostal and a cardiac apex into a ventricular septum; turning on the energy generating device, and using the distal end of the ablation needle assembly to perform radio-frequency ablation or microwave ablation to hypertrophied myocardium within the ventricular septum to make it necrotic and/or atrophic. The present disclosure avoids risk and pain of surgical septal myectomy and extracorporeal circulation in surgical resection, and does not have risk of large-area myocardial infarction caused by alcohol ablation. It is easy to operate and slight trauma to patients.

Treatment method for hypertrophic cardiomyopathy

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Hangzhou, China

Xinjiong Qiu