US 11,724,051 B2
Systems and methods for detecting an intentional leak characteristic curve for a respiratory therapy system
Stephen McMahon, Dublin (IE); Anna Rice, Dublin (IE); Graeme Alexander Lyon, Dublin (IE); and Redmond Shouldice, Dublin (IE)
Assigned to ResMed Sensor Technologies Limited, Dublin (IE)
Appl. No. 17/801,096
Filed by ResMed Sensor Technologies Limited, Dublin (IE)
PCT Filed Mar. 5, 2021, PCT No. PCT/IB2021/051884
§ 371(c)(1), (2) Date Aug. 19, 2022,
PCT Pub. No. WO2021/176426, PCT Pub. Date Sep. 10, 2021.
Claims priority of provisional application 63/108,837, filed on Nov. 2, 2020.
Claims priority of provisional application 63/072,768, filed on Aug. 31, 2020.
Claims priority of provisional application 62/986,431, filed on Mar. 6, 2020.
Prior Publication US 2023/0085305 A1, Mar. 16, 2023
Int. Cl. A61M 16/00 (2006.01)
CPC A61M 16/024 (2017.08) [A61M 2016/0027 (2013.01); A61M 2016/0036 (2013.01); A61M 2205/15 (2013.01); A61M 2230/42 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A method for determining an intentional leak characteristic curve for a respiratory therapy system, comprising:
receiving a plurality of flow rate values associated with pressurized air directed to an airway of a user of the respiratory therapy system;
receiving a plurality of pressure values associated with the pressurized air directed to the airway of the user, each of the plurality of pressure values corresponding to a respective one of the plurality of flow rate values;
identifying a first time associated with a first breath of the user and a second time associated with a second breath of the user;
filtering the plurality of flow rate values based at least in part on the identified first time and the identified second time, the filtering producing a subset of the plurality of flow rate values; and
determining the intentional leak characteristic curve for the respiratory therapy system using at least two of the subset of the plurality of flow rate values and the corresponding pressure values for said at least two of the subset of the plurality of flow rate values.