[Usefulness of laparoscopy trocars in bladder and perivesical drainage]

Presentation of a new alternative to the traditional percutaneous vesical approach using a laparoscopic trocar. This approach fulfils two purposes: the first one, to reduce the cost of vesical drainage (recyclable material); the second and more interesting one, to avoid draining surgical procedures and uretral lesions during mechanical vesical lithotripsy by using a direct percutaneous access. The difference between this method and the previous ones is not the access route but the materials used.