A single bipolar ablation system with dual perfusion and ecg output

Abstract

The invention discloses a bipolar ablation system with dual perfusion and ECG output. The system comprises a single bipolar radio frequency system and a perfusion system. A control MCU in the single bipolar radio frequency system isolates a transmission controller and a radio frequency power amplifier driving circuit through a control signal. A radio frequency power amplifier circuit is connectedwith the radio frequency power amplifier driving circuit and a power amplifier power supply. A radio frequency output end is connected with a first ablation catheter output channel, a second ablationcatheter output channel and a back polar plate through a single bipolar channel switching circuit. The control MCU is connected with a filter circuit through a filter enable relay. The filter circuitis connected with an ECG analog port. The perfusion system comprises first and second perfusion pumps which are communicatively connected with the control MCU in the single bipolar radio frequency system through a perfusion pump isolation communication controller respectively. The bipolar ablation system controls the corresponding perfusion pump to output a high quality ECG signal according to different radio frequency outputs, can improve the ablation efficiency, and at the same time can reduce the surgical risk.

Description

technical field [0001] The invention relates to the technical field of radiofrequency ablation, in particular to a single-bipolar ablation system with double perfusion and ECG output. Background technique [0002] Radiofrequency refers to the non-modulated sine wave with a frequency between 300KHz and 1000KHz. The radiofrequency ablation device emits radiofrequency through the radiofrequency catheter to act on specific parts of the body for ablation and blockage to achieve therapeutic effects. Currently, radiofrequency ablation systems can treat many diseases. [0003] In existing cardiac radiofrequency ablation equipment, monopolar radiofrequency ablation is usually used. However, in monopolar RF, one electrode is the working electrode and the other employs the back plate as the return electrode. The electrode surface of monopolar radio frequency can concentrate high energy, and the emitted energy can penetrate deeper. Since the electrode and the back plate form a loop, ...

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Problems solved by technology

The clinical application of this ablation scheme often needs to be used in conjunction with the perfusion pump, but the existing bipolar radio frequency output and perfusion pump cannot control the perfusion flow according to the radio frequency output, resulting in low ablation efficiency and safety

Moreover, in heart surgery, it is often necessary to judge the state of the heart based on ECG (electrocardiogram, electrocardiogram) signals, and the existing ablation systems rely on additional ECG signal output hardware to obtain ECG signals that often cannot meet the requirements of different radio frequency output. The requirements for the quality of the ECG output signal in the occasion lead to a further increase in the risk of surgery

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