[Physical and physiological principles of CO2 hysteroscopy (author's transl)].

Various possibilities of developing the uterine cavity for hysteroscopy were presented together with their advantages and disadvantages. The authors consider CO2 gas insufflation to be the method of choice. The physical, physiological and technical principles and data of the procedure were discussed. The construction and function of the Hysteroflators 1000 S, a special gas insufflation apparatus for hysteroscopy were also discussed.