The type of urinary derivation after radical cystectomy due to urinary bladder carcinoma does not influence survival substantially, but it may influence the quality of life of the patients very much. One of modifications of classical ureterosigmoidostomy that has been focused by urologist in recent years in the sigma rectum pouch (Mainy pouch II), for its substantially improved aspects of quality of life and earlier occupational rehabilitation of these patients. In the period August 1994 through March 1998 we made Meinz pouch II (the modification implies fixation of the pouch to the parietal peritoneum and implantation of the ureter into the pouch as suggested by Camey-Le-Duc). This surgical technique is associated with lots of advantages as the continent form of urinary derivation, and as a fairly simple surgical technique it is an improvement in this type of surgery. Intactness of the abdominal wall (no urostoma), frequency of defecation/urination in 3-4 hr intervals during the day and 4-5 hours during the night, absolutely volitonal control of these functions, rapid postoperative recovery with stabilization of renal function parameters, low percentage of ascending infections, higher degree of occupational rehabilitation, i.e. lower incidence of disability and good psychosocial status are all advantages of this method in the light of the quality of life of these otherwise very difficult patients.