ELECTROPHYSIOLOGICAL CATHETER AND ABLATION SYSTEM

Provided are an electrophysiological catheter (300) and an ablation system (10), which can realize the cold and thermal ablations in combination and improves the effect of ablation treatment. Wherein the ablation system (10) comprises a control device (100), an ablation energy output device (200) and the electrophysiological catheter (300). In practical applications, the control device (100) controls the ablation energy output device (200) to selectively provide a first fluid or a second fluid to the electrophysiological catheter (300), the second fluid is frozen liquid, when the ablation energy output device (200) provides the first fluid, the control device (100) controls a first heating element (303) on the electrophysiological catheter (300) to work, so that the first heating element (303) heats the fluid entering the electrophysiological catheter (300), and a thermal ablation gas is sprayed onto the inner surface of a balloon (302) to achieve thermal ablation of a target tissue, and when the ablation energy output device (200) provides frozen liquid, the control device (100) controls the first heating element (303) not to work, so as to directly spray the frozen liquid to the inner surface of the balloon (302) to achieve the freezing ablation of the target tissue.