The peritoneoscope is reinserted into the cannula, and the peritoneoscope and cannula are advanced together into the abdomen under direct vision. Bowel loops, omentum, and adhesions are identified and these structures avoided. The clearest, longest open space is selected for catheter positioning. The peritoneoscope and cannula are advanced until the cannula tip reaches the end of the selected space or until the hub of the cannula reaches the skin.