Hangzhou Nuo Cheng Medical Instrument Co., Ltd.

Silergy Semiconductor Technology (hangzhou) Ltd

Deke Medtech (hangzhou) Inc.

Liwen Liu

Tingchao Zhang

Bobo Peng

Xinjiong Qiu

Chen Zhao

Yang Li

Zhenjun Zi

Ji Zheng

Nan Shao

Jingjing Hu

Xiaotong Zeng

Daoyang Liu

Xiongzhi Wang

Shanfeng Hu

Chia-Chi Liu

Sheng-Fu Hsiao

The present disclosure discloses a control circuit, a control method and a voltage regulator. The technical solution provided by embodiments of the present disclosure can be extended to N*M phase applications by connecting N multi-phase power converters in a voltage regulator in parallel in an interleaving manner and controlling M-phase power stage circuits in each multi-phase power converter to be connected in parallel in an interleaving manner, thereby effectively achieving multi-phase interleaving control and reducing output voltage ripples.

Control circuit, control method and voltage regulator

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

A therapeutic device, therapeutic system and therapeutic method for myocardium repair, wherein the therapeutic device comprises a treatment needle for piercing the heart to release a therapeutant. The treatment needle includes a needle body (), the interior of the needle body () has a therapeutant conveying cavity, an end of the needle body () is a needle () which can pierce the myocardium and guide the needle body () to pass through the myocardium, and the needle () has a therapeutant output port which is connected to the therapeutant conveying cavity. The therapeutic device enters into the myocardium in a minimally invasive manner to release the therapeutant to the vicinity of the lesion to improve myocardial function or activity and prevent further deterioration of the disease.

Therapeutic device, therapeutic system and therapeutic method for myocardium repair

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

Growing community of inventors

Hangzhou, China

Liwen Liu