US 11,986,591 B2
Methods and apparatus for ventilatory treatment of respiratory disorders
David John Bassin, Coogee (AU)
Assigned to ResMed Pty Ltd, (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Mar. 8, 2021, as Appl. No. 17/194,602.
Application 17/194,602 is a continuation of application No. 15/559,504, granted, now 10,974,000, previously published as PCT/AU2016/050189, filed on Mar. 17, 2016.
Claims priority of application No. 2015901014 (AU), filed on Mar. 20, 2015.
Prior Publication US 2021/0187221 A1, Jun. 24, 2021
Int. Cl. A61M 16/00 (2006.01); A61B 5/00 (2006.01); A61B 5/08 (2006.01); A61B 5/087 (2006.01); A61M 16/06 (2006.01); A61M 16/10 (2006.01); A61M 16/16 (2006.01)
CPC A61M 16/0069 (2014.02) [A61B 5/0826 (2013.01); A61B 5/4818 (2013.01); A61M 16/0051 (2013.01); A61M 16/026 (2017.08); A61M 16/06 (2013.01); A61M 16/1095 (2014.02); A61M 16/16 (2013.01); A61B 5/087 (2013.01); A61M 2016/0027 (2013.01); A61M 2016/0036 (2013.01); A61M 16/0066 (2013.01); A61M 16/0633 (2014.02); A61M 16/0683 (2013.01); A61M 16/1055 (2013.01); A61M 16/109 (2014.02); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2205/21 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3365 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3553 (2013.01); A61M 2205/3561 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/42 (2013.01); A61M 2205/502 (2013.01); A61M 2205/75 (2013.01); A61M 2205/7518 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of treating a respiratory disorder in a patient, the method comprising:
controlling, with a ventilator, a ventilation therapy through a patient interface to the patient, the ventilation therapy having a base pressure,
detecting, in a controller of the ventilator, an apnea from a sensor signal representative of respiratory flow rate of the patient,
estimating a leak flow rate during the apnea, and
in the controller, adjusting a set point for the base pressure of the ventilation therapy in response to the apnea based on the estimate of leak flow rate during the apnea,
wherein the adjusting the set point for the base pressure of the ventilation therapy in response to the apnea comprises:
computing an effective duration of the apnea dependent on the estimate of leak flow rate during the apnea, and
adjusting the set point for the base pressure based on the effective duration of the apnea.