[Technical improvements in the 900 D anesthetic servo-ventilator].

Demonstrated is a Mapleson D (Kuhn) modification integrated into a Siemens Elema Servo-Ventilator 900 D as it is used in pediatric anesthesia. The advantage seems to be the better feeling on the bag while briefly ventilating a child in critical phases of anesthesia. The disadvantage is to be seen in the lack of gas monitors (pressure, volume, content) advised by the DGAI for longer periods of manual ventilation. The scavenging system has an akward appeal and last not least the additional manual system stalls with electric power failure.