Patent ID: 11883593
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. A method being implemented by a computer system, the method comprising:
obtaining, from one or more sensors, airway pressure values of a patient and airway flow values of the patient;
determining, by the computer system, breath segmentation data indicating a first time associated with an onset of respiratory effort and a second time associated with an end of inhalation of the patient receiving support from a ventilator;
using: (a) a difference in the airway flow values sampled at the first time and during exhalation; and (b) airway volume values sampled during the exhalation determine a respiratory time constant value;
using the respiratory time constant value in combination with airway pressure values and the airway flow values sampled at the first time and the second time, and an airway volume value sampled at the second time, to thereafter recover one or more of respiratory resistance and respiratory elastance; and

providing, using the one or more of the respiratory resistance and respiratory elastance, a parameter of respiratory mechanics in a presence of an intrinsic positive end-expiratory pressure (PEEPi)
as input to the ventilator, causing an adjustment of one or more settings of the ventilator.