Patent ID: 11931509
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method, performed by a ventilator, for ventilation of a patient with the ventilator, the method comprising:
ventilating the patient with the ventilator in a spontaneous breath subtype, wherein the spontaneous breath subtype does not include a proportional assist (PA) breath subtype;
non-invasively monitoring respiratory data of the patient with at least one of a pressure sensor and a flow sensor operatively coupled to at least one of a patient circuit or a pressure generating system;
delivering inspiratory gas to the patient with the ventilator in response to a detected patient effort;
determining a percent support setting for the PA breath subtype based on a target setting or the respiratory data monitored during the spontaneous breath subtype;
automatically and temporarily switching from the spontaneous breath subtype into the PA breath subtype for at least three breaths, wherein the PA breath subtype is based on the percent support setting;
estimating a respiratory system compliance and a respiratory system resistance of the patient, based on the respiratory data monitored during the PA breath subtype;
returning to the spontaneous breath subtype after the at least three breaths;
calculating a drive pressure of the patient based on:
at least one of the respiratory system compliance or the respiratory system resistance, estimated during the PA breath subtype; and
the respiratory data monitored after returning to the spontaneous breath subtype; and

automatically performing an action by the ventilator, based on the drive pressure.