Flow-based sleep stage determination
AssigneeFisher & Paykel Healthcare Limited
InventorsSimei Gomes Wysoski, David Robin Whiting
Life of this patent
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Abstract
A method and system of determining a sleep stage of a user involves receiving a respiratory flow signal of a user, obtaining at least one respiratory feature from at least part of the respiratory flow signal, and determining a sleep stage from the at least one respiratory feature.
Claims20
A method of automatically determining a sleep stage of a user using a respiratory system configured to provide respiratory therapy to the user, the method comprising:
- using a controller of the respiratory system and one or more sensors of the respiratory system:
- receiving a respiratory flow signal of the user from the one or more sensors;
- obtaining at least one centre of mass measurement from the respiratory flow signal;
- automatically determining the sleep stage of the user from the at least one centre of mass measurement;
- and
- using the determined sleep stage of the user to adjust an operational parameter of the respiratory therapy.
A respiratory system configured to provide respiratory therapy to a user and automatically determine a sleep stage of the user, the system comprising:
- a controller in electrical communication with one or more sensors located at the respiratory system and configured to receive a respiratory flow signal of the user from the one or more sensors, the controller comprising:
- a feature extractor configured to obtain at least one centre of mass measurement from at least part of the respiratory flow signal of the user;
- and
- a mapping module configured to automatically determine the sleep stage of the user from the at least one centre of mass measurement,
- wherein the controller is further configured to use the determined sleep stage of the user to adjust an operational parameter of the respiratory therapy.
A respiratory system configured to provide respiratory therapy to a user and automatically determine a sleep stage of the user, the system comprising:
- a processor in electrical communication with one or more sensors located at the respiratory system;
- and
- a computer readable medium having stored thereon computer executable instructions that, when executed by the processor, cause the processor to perform a method of determining the sleep stage of the user, the method comprising:
- receiving a respiratory flow signal of the user from the one or more sensors;
- obtaining at least one centre of mass measurement from at least part of the respiratory flow signal;
- automatically determining the sleep stage of the user from the at least one centre of mass measurement;
- and
- using the determined sleep stage of the user to adjust an operational parameter of the respiratory therapy.
A computer readable medium of a respiratory system configured to provide respiratory therapy to a user, the medium having stored thereon computer-executable instructions that, when executed by a processor of the respiratory system that is in electrical communication with one or more sensors located at the respiratory system, cause the processor to perform a method of automatically determining a sleep stage of a user, the method comprising:
- receiving a respiratory flow signal of the user from the one or more sensors;
- obtaining at least one centre of mass measurement from at least part of the respiratory flow signal;
- automatically determining the sleep stage of the user from the at least one centre of mass measurement;
- and
- using the determined sleep stage of the user to adjust an operational parameter of the respiratory therapy.
Dependencies are inferred from the claim text.