The present invention relates to an ablation catheter (1) for ablation of tissue comprising: an outer tubular body (4a) and an inner tubular body (4b) concentric with each other and an inner tubular body Shaped guiding element 5 having at least one free end 5a which is received in the inner tubular body 4b and protrudes from the inner tubular body 4b, tubular body (4), said at least one free end (5a) corresponding to a distal end of said flexible tubular body (4)； - positioning heads (2, 2 ', 2' ', 2', 2 ', 2') and ablation heads (3) corresponding to the distal ends of said flexible body The positioning head 2, 2 '', 2 '', 2 °, 2 *, 2 'is located near the free end 5a of the rod-shaped guiding element, 2 ", 2 ", 2 ", 2 ", 2 ", 2 ", 2 & *, 2 ^) and a cutting head 3； 2 ", 2 ", 2 ", 2 ", 2 ', 2 ' ', at the proximal end of the flexible body 4, the guiding element 5, the ablation head 3, And a control handpiece connected to the flexible tubular body 4, wherein the resection head 3 is in a rest position accommodated in the outer tubular body 4a, And at least two resilient elements or petals (3a) capable of moving from an operating position protruding like a petal from the outer tubular body (4a), wherein the resilient elements Or petals 3a are arranged in a circumferential peripheral region of each of said petals 3a along an arc of a circumference substantially centered on the longitudinal axis of said rod- a continuous resection electrode 3b extending without interruption over a portion of the resection electrode 3b； - two side portions (3c) of the petal (3a) each connected to an end of the resection electrode (3b) corresponding to the bent portion, the side portions (3c) The electrodes 3b are joined together and formed by the same folded metal conductor and each of the cut-off petals 3a is separated from and distinguished from another cut-off petal 3a of the cut-off head, All of the abstinence petals 3a of the ablation head are separately connected to separate electrical
