| 摘要 |
The outputs of a pressure sensor (5), a flow sensor (2) and a volume determining device (3), which may determine the volume by integrating the flow rate with respect to time, are connected to a monitoring unit (7) which in turn is connected to a calculating unit (6), and optionally to a storage unit (8). During each respiratory cycle the monitoring unit (7) supplies the calculating unit (6) with at least two sets of sensed values of the pressure, the flow rate and the volume from which the calculating unit (6) then calculates the required parameters of the respiratory system. These parameters could be, for example, a linear component of the airway resistance, a quadratic component of the airway resistance, a compliance of the lungs, and an alveolar residual pressure. <IMAGE> |
