[Laparoscopic surgery and CO2 laser: clinical evaluation of a system of transmission of the infraguide type].

The use of the CO2 laser in coelio-surgery is closely linked to the quality of the beam transmitted to the tissues. The development of infra-guided systems constitutes a major improvement compared to conventionally guided systems. These systems make it possible to convey an undeformed beam with no loss of power to their distal extremity. In addition, their narrow diameter, which corresponds to the trochars used in conventional coelio-surgical equipment, makes them easy to handle.