[Servoventilator and kuhn-system. A device for intermittent manual ventilation (author's transl)]

A modification of the Servo-Ventilator is described: With the help of "Kuhn's System" it is possible to manualy ventilate a patient while for instance searching for a defect in the ventilator or in certain operative situations. The adaptation is simple and cheap and should be easy to implement in every clinic.