The treatment uses a pump and a cylinder to create vacuum around the penis so that it swells, it facilitates the blood to return to the penis. When the penis reaches the desired erection, one constriction ring is placed to maintain the erect state. The cylinder must be adapted to pressure only the corpora cavernosa and not the urethra. The vacuum pump is used a lot in men that had to remove a penile prosthesis for some reason. Despite being a non-invasive technique and with low rate of complications, it requires good manual dexterity for the patient use and can lead to injuries in the penis and interfere in the ejaculation.