Irrigated balloon catheter for the ablation of tissue

A catheter device for use in surgery, said device comprising:

• a shaft, adapted to receive at least one electrically conductive fluid;
• at least one first electrode arranged on a first section of the shaft;
• at least one first counter electrode;
• a first electric line connected to the at least one first electrode and the at least one first counter electrode, said first electric line being adapted to transmit an electrical signal to the at least one first electrode and the at least one first counter electrode;
• and
• at least one first membrane adapted to enclose the first section of the shaft, to end with the shaft in a fluid-tight manner, and to form a first interior space between the at least one first membrane and the first section of the shaft, wherein the first section of the shaft is adapted to convey the at least one electrically conductive fluid into the first interior space, and wherein a first wall of the at least one first membrane is adapted to be at least partially fluid-permeable.