Pressure adjustment in a respiratory therapy device
AssigneeKoninklijke Philips N.V.
InventorsBenjamin Irwin Shelly, Michael Thomas Kane, Gregory Delano Matthews, Heather Dawn Ressler
Life of this patent
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Abstract
Sleep apnea can be treated with pressure support therapy using a target pressure level. Detected respiratory events during consecutive multi-session testing period are compared to determine statistical metrics covering gradual changes in therapy efficiency. Adjustments to the target pressure level are based on changes in variability, and maybe made in between therapy sessions.
Claims16
A system for treating sleep apnea of a subject having an airway by adjusting a pressure level, the system comprising:
- (a) a pressure generator configured to provide therapeutic usage by generating a pressurized flow of breathable gas for delivery to the airway of the subject, in accordance with a therapeutic regimen;
- (b) one or more sensors configured to generate output signals conveying measurements related to the pressurized flow of breathable gas and/or the airway of the subject;
- and
- (c) one or more processors configured to execute computer program modules, the computer program modules comprising:
- (1) a respiratory event module configured to detect respiratory events based on the generated output signals,
- (2) a target pressure module configured to adjust a target pressure level based on the detected respiratory events, wherein the target pressure module is configured to adjust the target pressure level such that consecutive adjustments occur at least a threshold amount of therapeutic usage apart, wherein the threshold amount of therapeutic usage corresponds to therapeutic usage spanning more than one therapy session, and
- (3) a control module configured to control the pressure generator to adjust the pressurized flow of breathable gas such that the pressure at or near the airway of the subject is maintained at or near the target pressure level.
A method of treating sleep apnea of a subject having an airway by adjusting a pressure level, the method comprising;
- providing therapeutic usage by generating and delivering a pressurized flow of breathable gas having a pressure level at or near a target pressure level to the airway of a subject, in accordance with a therapeutic regimen;
- generating one or more output signals conveying measurements related to the pressurized flow of breathable gas and/or the airway of the subject;
- detecting respiratory events based on the generated output signals;
- and
- adjusting the target pressure level based on the detected respiratory events, such that consecutive adjustments occur at least a threshold amount of therapeutic usage apart, wherein the threshold amount of therapeutic usage corresponds to therapeutic usage spanning more than one therapy session.
A system configured to treat sleep apnea of a subject having an airway by adjusting a pressure level, the system comprising:
- means for providing therapeutic usage by generating and delivering a pressurized flow of breathable gas having a pressure level at or near a target pressure level to the airway of a subject, in accordance with a therapeutic regimen;
- means for generating one or more output signals conveying measurements related to the pressurized flow of breathable gas and/or the airway of the subject;
- means for detecting respiratory events based on the generated output signals;
- and
- means for adjusting the target pressure level based on the detected respiratory events, such that consecutive adjustments occur at least a threshold amount of therapeutic usage apart, wherein the threshold amount of therapeutic usage corresponds to therapeutic usage spanning more than one therapy session.
Dependencies are inferred from the claim text.