Figure 2

Lung model study, protocol I. ΔLeak (difference between Leak_conv and Leak_pause) is shown at given inspiratory flow (V'_I) as a function of cross-sectional area around the endotracheal tube in a simulated model of respiratory system disease. Filled circles, large cross-sectional area; open circles, small cross-sectional area. *, Significantly different from the corresponding value at V'_I = 1 litre/s. ⁺, Significantly different from the corresponding value at V'_I = 0.8 litre/s. ^&, Significantly different from the corresponding value for simulated restrictive respiratory system disease. ^#, Significantly different from the corresponding value for simulated normal respiratory system.