Constant Flow Inflation of the Lungs
Constant Flow Inflation of the Lungs
复制标题
肺部恒流充气
DOI:
10.1111/j.1399-6576.1966.tb01014.x
复制
发表时间:
1966
影响因子:
2.1
通讯作者:
Duncan A. Holadav
中科院分区:
文献类型:
--
作者:
C. Rattenborg;Duncan A. Holadav
The pressure curve obtained from the upper airways during constant flow inflation allows for an analysis of the mechanical properties of the respiratory organs. The constant flow technique has been found suitable for theoretical analysis of mechanics of artificial ventilation (RATTENBORG ( 1956)6 and MAPLESON ( 1959)4), in studies of effects on pulmonary mechanics of reduced pulmonary perfusion (GERST, RATTENBORG, HOLADAY ( 1959)z and SEVERINGHAUS, SWENSON, FINLEY, LATEGOLA, WILLIAMS (1961)8) and in the studies of the stress relaxation of the visco-elastic properties of the respiratory organs (HUGHES, MAY, WIDDICOMBE (1959y and DON, ROBSON (1966)'). The technique has also been used to study unilateral changes by ventilating each lung separately (SEVERINGHAUS, SWENSON, FINLEY, LAGEGOLA, WILLIAMS ( 196 1)8) or both simultaneously ( RATTENBORG, BENFIELD, NIGRO, GAGO, ADAMS ( 1962) ') through a bronchial divider. We will consider the effects on the upper airway pressure response to square flow inflation of (1) elastic and of (2) the non-elastic resistance and ( 3 ) uiscoelastic properties of the respiratory organs. We will include the following conditions: (1) ventilation of normal symmetrical lungs, (2) the effect of increased airway resistance, causing increased functional residual capacity and (3) ventilation of lungs with compartments having different time constants, causing uneven distribution of air in the lungs, or air trapping.