[Pressure constant, transurethral resection with the new suprapubic "overflow regulator"].

A new suprapubic device that regulates the intravesical pressure automatically during TUR is introduced. This flow controller ensures a constantly low intravesical pressure during TUR. The irrigation fluid constantly flows over into a small open glass jar adjusted to the trocar immediately above the abdominal wall. In this way the pressure is determined by the height of the jar above the bladder, which makes it independent of the irrigation flow. Having constant low pressure conditions between 14 and 18 cm H2O, the bladder wall does not collapse. Thus, the anatomical situation does not change throughout the entire operation, which leads to markedly better overall vision.