This application provides a pulsed
electric field ablation catheter, comprising: a tube body, the tube body including a first tube
body segment, a second tube
body segment, and a third tube
body segment connected in sequence, the second tube body segment being deformable; a
handle connected to the third tube body segment; an inner tube sleeved on the tube body and movable along the axial direction of the tube body; an
electrode assembly connecting the inner tube and the first tube body segment, the
electrode assembly being deformable when the inner tube moves relative to the tube body to adjust the position of the electrodes in the
electrode assembly; and an operating mechanism disposed on the
handle and connected to the second tube body segment and the inner tube, used to control the deformation and bending of the second tube body segment, and to control the movement of the inner tube relative to the tube body, which can stop at any position within the
range of movement. This application uses a dual adjustment mechanism of changing the state of the electrode assembly and the deformation and bending of the second tube body segment to adjust the position of the electrodes, greatly improving the range of electrode position adjustment and increasing the flexibility of
surgical operation.