Disclosed herein are wirelessly powered tissue ablation devices comprising an alternating magnetic field generator； an ablation probe comprising an ablation tip； a catheter comprising an opening at a tissue insertion end and a lumen extending along a length of the catheter to the catheter opening； and a magnetic field receiving coil configured to be electrically coupled to the ablation probe； wherein at least a portion of the ablation probe is positionable within the lumen of the catheter, and wherein the ablation tip protrudes through the opening of the catheter. Also disclosed are methods of using wirelessly powered tissue ablation devices.
