Abstract: A urological resectoscope having an outer stem fitted with orifices at its distal terminal zone and an inner stem, both stems being tubular and metallic and being sealed from each other in the distal end zone and being affixed to each other, optionally in detachable manner, and to a main case. The resectoscope also includes an electrode support running longitudinally through the inner stem and bearing an hf-loaded cutting loop at its distal end. Liquid hookups feed liquid into the inner stem and drain liquid from an annular duct defined between the inner and outer stems. A distally affixed tubular insulating shell is disposed between the inner and outer stems and affixed to the outer stem.

Abstract: The invention relates to a urological resectoscope comprising an outer stem fitted with orifices at its distal terminal zone and an inner stem, both stems being tubular and metallic and being sealed from each other in the distal end zone and being affixed to each other, optionally in detachable manner, and to a main case, further comprising an electrode support running longitudinally through the inner stem and bearing an hf-loaded cutting loop at its distal end, further proximally mounted hookups to feed liquid into the inner stem and to drain liquid from the annular duct between the inner and outer stems, and a distally affixed tubular insulating shell, said resectoscope being characterized in that the insulating shell is affixed to the outer stem.