Respiratory device e.g. nose mask, controlling device, involves temporarily measuring respiratory gas pressure, and digitally correcting measured value of gas flow based on respiratory gas pressure

摘要

The method involves supplying respiratory gas from a respiratory gas source to a patient interface. Respiratory gas flow is temporarily measured by the patient interface using a mass flow measurement process. Respiratory gas pressure is temporarily measured, and a measured value of the gas flow is automatically, digitally corrected based on the respiratory gas pressure. Total pressure is calculated from ambient pressure and the respiratory gas pressure. A corrector is formed using a table with stored values. An independent claim is also included for a device for controlling a respiratory device.