DEVICE FOR ADMINISTERING A BREATHING GAS AND METHOD FOR ADJUSTING BREATHING GAS PRESSURES THAT ALTERNATE AT LEAST IN SOME PHASES

摘要

The invention is directed to a device (6) for furnishing a breathing gas at alternating pressure levels having a feeding device (7) for feeding the breathing gas, a pressure adjusting device (14) for triggering the feeding device, a pressure specification device (14) for generating a pressure signal, and parameter-determination means (12) for furnishing parameters representative of at least of the instantaneous pressure (p), the progression of time (t), and the instantaneous breathing gas flow (v), wherein the pressure specification device includes a computer circuit configured such that at least in the expiratory phase, an adjustment of the pressure is effected on the basis of a dynamic or nonlinear pressure guidance function, which takes parameters into account that are indicative of the breathing gas flow and the progression of time and as a result, the tendency to lowering the breathing gas pressure in conjunction with the extent of the breathing gas flow decreases with increasing progression of time.