High-voltage transmitting circuit for catheter, and ablation tool

Abstract

A high-voltage transmitting circuit (100) for a catheter, and an ablation tool (1000). A first electrode (P1) and a second electrode (P2) are provided on the catheter. The high-voltage transmitting circuit (100) comprises: a first transmitting circuit (110), wherein a first end of the first transmitting circuit (110) is connected to a high-voltage positive electrode (+HV), a second end of the first transmitting circuit (110) is connected to a high-voltage ground (GND), and a third end of the first transmitting circuit (110) is connected to a high-voltage negative electrode (−HV); a filtering circuit (120), wherein an input terminal of the filtering circuit (120) is connected to a transmitting terminal of the first transmitting circuit (110), an output terminal of the filtering circuit (120) is connected to the first electrode (P1), and the second electrode (P2) is connected to the high-voltage ground (GND); and a control circuit (130), wherein the control circuit (130) is used for controlling the first transmitting circuit (110) to output an alternating-current (AC) square wave, which is subjected to filter processing by the filtering circuit (120) to form a sine wave between the first electrode (P1) and the second electrode (P2). In this way, the output of pulsed voltage waveform of the sine wave is realized, and therapeutic requirements in some ablation operations by pulsed electric field are satisfied, thereby expanding the application prospects of ablation technique by pulsed electric field in arrhythmia treatment.

Dependencies are inferred from the claim text.