Electrosurgical device and its use for removing large bladder tumors

An electrosurgical bladder tumor removal apparatus comprising:

• an HF power source providing HF energy for electrosurgery;
• an electrode end configured for electrosurgically operating on a patient and to which said HF energy is supplied, wherein the electrode end is an active resection electrode loop with a 0°-45° angle of bending;
• a set of controls having:
• a first control switch to supply HF energy in a first mode to the electrode end, wherein the first mode is controlled by a set of controls, and wherein the first mode is a dissection mode;
• a second control switch to supply HF energy in a second mode to the electrode end, wherein the second mode is controlled by the set of controls, and wherein the second mode is a coagulation mode;
• a control for power, frequency, length, repetition rate,
• a first selector to select one of a single shot mode, a burst mode, or a continuous pulse generation mode, and
• a second selector for selecting a length of automatically generated HF pulses in the first mode, wherein said second selector is operable to accept a selection of a pulse length between 0.1 to 2 seconds;
• circuitry to control application of said HF energy to said electrode end in the first mode or the second mode,
• wherein said circuitry is adapted to provide said HF energy in the first mode or the second mode to said electrode end, and to automatically generate pulses of said HF energy such that the pulses have an automatically controlled length and an automatically controlled repetition rate based on settings of the set of controls, said circuitry being adapted to automatically provide said HF energy, in the first mode, said HF energy in the form of pulses to said electrode end, the pulses having a length between 0.1 and 2 seconds,
• wherein said circuitry is further adapted to apply, in the second mode, HF energy for blood vessel coagulation having a nominal frequency range of 500-1500 KHz and an HF power of less than 200 watts,
• the electrosurgical bladder tumor removal apparatus comprising:
• an element configured to provide one of continuous or cyclic low-flow bladder perfusion with sterile conductive solution during a course of the operation without overfilling a bladder beyond a physiological volume of the bladder;
• an optic resectoscope configured to permit visual control of an operation site;
• and
• wherein the electrosurgical bladder tumor removal apparatus is adapted to work in conjunction with a rotary tissue morcellator.