Laser device with a means for adjusting the pressure in body cavities for medical treatment purposes

摘要

A laser measurement device has a protective pipe (17) surrounding a fibre optical laser emitting element in order to form a first gap and a pipe (22) surrounding the protective pipe in order to form a second gap. Gas is supplied through the first gap in order to clean the emitting end of the laser emitting element. A pressure sensor (29) is connected to the second gap in order to monitor the pressure in the stomach. A suction device responding to the pressure sensor is also connected to the second gap in order to control the gas pressure in the stomach. <IMAGE>