A medical resector for oblating, cutting, or coagulating human or animal tissue includes a rotatable high-frequency electrode on the distal end of a shaft of the medical resector and an axle that runs from the proximal end to the distal end of the shaft and is mechanically coupled with the high-frequency electrode on the distal end. The axle is positioned on the distal end of the shaft in the center or as close as possible to the center of the cross-section of the shaft and on the proximal end of the shaft on the border or as close as possible to the border of the cross-section of the shaft.