Detection of dynamic hyperinflation in spontaneously breathing mechanically ventilated patients

摘要

A method and device for determining dynamic hyperinflation during mechanical ventilation of a spontaneously breathing patient, wherein mechanical ventilation is removed during one breath of the patient, inspiratory and expiratory volumes of the patient are measured during the one breath, and a difference between the inspiratory and expiratory volumes measured during the one breath is calculated. Dynamic hyperinflation of the patient's lungs is indicated in relation to the calculated difference.

主权项

1. A method for determining dynamic hyperinflation during mechanical ventilation of a spontaneously breathing patient, comprising:
removing, using a controller, mechanical ventilation during one breath of the patient; measuring inspiratory and expiratory volumes of the patient during said one breath; calculating, using a calculator, a difference between the inspiratory and expiratory volumes measured during said one breath, the calculated difference having a value; and indicating, using an indicator, presence or absence of dynamic hyperinflation of the patient's lungs on the basis of a position of the value of the calculated difference with respect to a first value indicative of presence of dynamic hyperinflation and a second value indicative of absence of dynamic hyperinflation.