METHOD FOR PREDICTING DISORDERS OF EXTERNAL RESPIRATION Russian patent published in 2008 - IPC A61B5/91 

FIELD: medicine, pulmonology, functional diagnostics.

SUBSTANCE: one should measure the concentration of CO₂ in respiratory tract, moreover, it is necessary to carry out synchronous registration of a spirogram and a capnogram. One should form a curve of volumetric capnogram against the volume of inhaled and expired air and if CO₂ in inspiratory phase doesn't reach the value of carbonic acid in atmospheric air it is possible to diagnose inefficiency of inhalation, and in case of decreased steepness of CO₂ concentration drop against the volume of inspired air it is possible to diagnose inspiratory obstruction. The innovation widens the quantity of means for predicting the disorders of external respiration.

EFFECT: higher accuracy of diagnostics.

3 dwg, 2 ex