Patent ID: 8973578
Filing Date: 2015-03-10
Classification: A61B,A61M

Abstract:
1. An apparatus ( 1 ) for respiratory support and non-invasive detection of alveolar recruitment/derecruitment for patients ( 2 ) suffering from respiratory failure, said apparatus ( 1 ) comprising means ( 3 ) for providing a pressure component (P resp ); means ( 15 ) for adding an additional pressure component (P stim ) at a frequency comprised between 5 and 10 Hz with a pressure comprised between 2 and 4 cm H 2 O; conduits ( 5 , 6 , 7 , 20 , 21 ) for the passage of said pressure component (P resp ) and said additional pressure component (P stim ) from and to the airways of a patient ( 2 ); transducers, applied to said conduits, of pressure ( 9 , 10 ) to electric signals; transducers, applied to said conduits, of flow ( 8 ) to electric signals and computing means ( 12 ) for providing a variable positive end-expiratory pressure (PEEP) to said patient ( 2 ); processing said electric signals so as to obtain a value of the end-expiratory reactance (Xee), at the varying of the value of said positive end-expiratory pressure (PEEP), and defining a state of pulmonary recruitment, as the value of the positive end-expiratory pressure (PEEP) which corresponds to a point of maximum end-expiratory reactance (Xee).