[An anesthesia system with an afferent closed reservoir--a better alternative in the Anestar 7 anesthesia apparatus]

The possibility to replace the circular anesthesia system and the appliance for artificial ventilation "Hirolog 4" of the narcosis apparatus "Anestar 7 N" with the system using afferent closed reservoir described by Miller (1988). The advantages of the system mentioned above, particularly for this apparatus, are pointed out.