Abstract: An exchanger conduit permits temperature and/or humidity conditioning of a gas for a patient respiratory interface. In an example embodiment, a conduit has a first channel and a second channel where the first channel is configured to conduct an inspiratory gas and the second channel configured to conduct an expiratory gas. An exchanger is positioned along the first channel and the second channel to separate the first channel and the second channel. The exchanger is configured to transfer a component (e.g., temperature or humidity) of the gas of the second channel to the gas of the first channel. In some embodiments, an optional flow resistor may be implemented to permit venting at pressures above atmospheric pressure so as to allow pressure stenting of a patient respiratory system without a substantial direct flow from a flow generator of respiratory treatment apparatus to the patient during patient expiration.

Abstract: A method for determining how using a respiratory therapy system impacts sleep sessions of a user, includes receiving first activity information corresponding to actions of a user occurring prior to a use of the respiratory therapy system by the user. The first activity information includes activity information associated with use of a mobile device by the user prior to the use of the respiratory therapy system. The method also includes receiving second activity information corresponding to actions of the user occurring after the use of the respiratory therapy system. The second activity information includes activity information associated with use of the mobile device by the user after the use of the respiratory therapy system, as well as respiratory information generated by the respiratory therapy system during a sleep session of the user when using the respiratory therapy system.

Abstract: A flow regulating valve for a respiratory treatment system is disclosed, as well as a vent arrangement comprising the flow regulating valve. The flow regulating valve may include an inlet, an outlet, and a variable conduit in fluid communication with the inlet and the outlet. The variable conduit may include a movable portion that may move to vary an impedance of the variable conduit, thereby regulating a flow rate of the air travelling through the variable conduit. Advantageously, the flow regulating valve may thus reduce wastage of air (e.g. humidified air) that is exhausted from a respiratory treatment system, while maintaining sufficient washout of air.

Abstract: A system and method to determine a sleep disorder in a patient is disclosed. A storage device stores a digital image including a face and a neck of the patient. A database stores previously identified phenotypes and dimensions of facial and neck features. A sleep disorder analysis engine is coupled to the storage device and the database. The sleep disorder analysis engine is operable to identify features of the face and the neck from the image by determining landmarks on the image. The sleep disorder analysis engine classifies at least one phenotype from the image based on comparisons with the database. The sleep disorder analysis engine correlates the at least one phenotype and at least one feature with a sleep disorder. The sleep disorder analysis engine determines a risk score of the sleep disorder based on the correlation of the phenotype and the feature.

Abstract: A flow regulating valve for a respiratory treatment system is disclosed, as well as a vent arrangement comprising the flow regulating valve. The flow regulating valve may include an inlet, an outlet, and a variable conduit in fluid communication with the inlet and the outlet. The variable conduit may include a movable portion that may move to vary an impedance of the variable conduit, thereby regulating a flow rate of the air travelling through the variable conduit. Advantageously, the flow regulating valve may thus reduce wastage of air (e.g. humidified air) that is exhausted from a respiratory treatment system, while maintaining sufficient washout of air.

Abstract: A system for identifying a body position of a user of a respiratory therapy system includes a sensor, a memory, and a control system. The sensor is configured to generate airflow data associated with the user. The memory stores machine-readable instructions. The control system includes one or more processors configured to execute the machine-readable instructions to receive the airflow data associated with the user during a sleep session. The control system is further configured to determine one or more features associated with the airflow data, and identify the body position of the user during a first portion of the sleep session based at least in part on the determined one or more features. The control system is further configured to cause an action to be performed based at least in part on the identified body position of the user.

Abstract: First physiological data associated with a user during a first time period is received. The first physiological data is analyzed to determine (i) a first respiration rate for the first time period, (ii) a first plurality of sample heart rate values, and (iii) first heart rate variability parameters for the first time period. Second physiological data associated with the user during a second time period is received. The second physiological data is analyzed to determine (i) a second respiration rate for the second time period, (ii) a second plurality of sample heart rate values, and (iii) second heart rate variability parameters for the second time period, the second respiration rate being less than the first respiration rate. The percentage likelihood that the user has an untreated sleep disorder is determined based at least in part on the first heart rate variability parameters and the second heart rate variability parameters.

Abstract: Systems and methods provide for detecting, quantifying, and/or treating bodily fluid shift in a user. According to some implementations, a method includes receiving sensor data from one or more sensors associated with a user, with the sensor data indicating an amount of bodily fluid within one or more extremities of the user. The method further includes determining a shift in the bodily fluid within the user based, at least in part, on the sensor data. The method further includes, responsive to the shift in the bodily fluid satisfying a fluid threshold, causing, at least in part, a correction for the shift in the bodily fluid to be applied to the user.

Abstract: A respiratory therapy (RT) system may be configured for acoustic operations. Such a system may include one or more acoustic generators to produce an inaudible acoustic signal that may be implemented for different uses. The acoustic generator(s), such as when coupled to a patient interface or air circuit of a respiratory therapy device, may provide inaudible acoustic signals whereby data concerning respiratory therapy may be collected at low cost, reducing cost of care in providing respiratory therapy. For example, the acoustic generator(s) may be configured to generate an acoustic signal indicative of one or more parameters, such as a flow rate or a pressure of the flow of air, or a type of or useable life of a component (e.g. patient interface). The system may have an acoustic receiver that may detect one or more acoustic signals from the acoustic generator, the RT system, the patient or the environment.

Abstract: A system includes a respiratory therapy system, a memory device, and a control system. The respiratory therapy system includes a respiratory therapy device supplying pressurized air, and a user interface coupled to the respiratory therapy device via a conduit to direct the pressurized air to an airway of a user. The memory device stores machine-readable instructions. The control system includes a processor(s) to execute the machine-readable instructions to: generate data, during a current sleep session, associated with a user of a respiratory therapy system; analyze the generated data to determine a value of a first metric that is associated with a sleep disordered breathing (SDB) condition; analyze the generated data to determine a value of a second metric that is associated with a health condition other than the SDB condition; and based at least in part on the determined value of the second metric, cause an action to be performed.

Abstract: An eye mask system for providing respiratory pressure therapy (RPT) for treatment of sleep disordered breathing, comprising: an eye mask configured to cover the user’s eyes in use; one or more transducers configured to influence the user’s sleep and/ or detect characteristics of the user or the user’s sleep. The eye mask system may comprise: a connection port to receive a pressurised flow of air or a flow generator; the eye mask system may comprise a plenum chamber, a seal-forming structure to form a seal with a region of the user’s face and a vent to allow flow of gases exhaled by the user to ambient. The eye mask system may operate in a non-treatment mode in which RPT is not provided to the user, and a treatment mode in which RPT is provided to the user.

Abstract: A system screens, diagnoses, or monitors sleep disordered breathing of a patient. The system may include a nasal cannula, a conduit connected to the nasal cannula at a first end, an adaptor configured to receive a second end of the conduit and/or a portable computing device. The adaptor may be configured to position the second end of the conduit in proximity with a microphone of the portable computing device. Optionally, a processor may generate an indicator to guide placement of the adaptor for use. Such positioning may, in use, permit the microphone to generate a patient breathing sound signal via the adaptor for processor(s) of the device. The processor(s) may then process the breathing sound signal. The process may include detecting SDB events from an extracted and/or de-rectified loudness signal. The process may include computing a metric of severity of a respiratory condition of the patient using detected SDB events.

Abstract: A respiratory assistance component is disclosed that changes shape when an electrical charge is provided. The amount of electrical charge that is applied may be based on values, characteristics, or user controlled parameters of the respiratory assistance system. The component may be all or part of a patient interface, a tube, a flow generator, and/or a sleep mat.

Abstract: A patient interface comprising a plenum chamber configured to receive in use a flow of air at the therapeutic pressure for breathing by a patient, a seal-forming structure configured to form a seal with or around the patient's nose and/or mouth, a positioning and stabilising structure configured to hold the seal-forming structure in a sealing position, and at least one inflatable body. In one form, an inflatable body is provided to a portion of the positioning and stabilising structure. In another form the inflatable body is provided to a hoop structure. In another form, the patient interface comprises a lever arrangement, wherein an inflatable body is provided to the lever arrangement. In yet another form, the seal-forming structure comprises an inflatable body.

Abstract: A system screens, diagnoses, or monitors sleep disordered breathing of a patient. The system may include a nasal cannula, a conduit connected to the nasal cannula at a first end, an adaptor configured to receive a second end of the conduit and/or a portable computing device. The adaptor may be configured to position the second end of the conduit in proximity with a microphone of the portable computing device. Optionally, a processor may generate an indicator to guide placement of the adaptor for use. Such positioning may, in use, permit the microphone to generate a patient breathing sound signal via the adaptor for processor(s) of the device. The processor(s) may then process the breathing sound signal. The process may include detecting SDB events from an extracted and/or de-rectified loudness signal. The process may include computing a metric of severity of a respiratory condition of the patient using detected SDB events.

Abstract: A method for optimizing sleep for a user of a respiratory therapy system is described herein. The method includes receiving therapy instructions to be implemented using the respiratory therapy system for a sleep session. The therapy instructions include a plurality of prescribed control parameters, each of the plurality of prescribed control parameters having a value or a range of values. The method further includes receiving a desired sleep comfort level for the sleep session, and adjusting one or more of the values or the range of values of the plurality of prescribed control parameters, to one or more adjusted values or range of values based on the desired sleep comfort level. The adjustments to the adjusted values are implemented to aid the user in achieving the desired sleep comfort level.

Abstract: A method includes applying, via a respiratory therapy system, initial therapy settings for a user during a first sleep session in which the user uses the respiratory therapy system. First physiological data, which is received from one or more sensors, is generated during the first sleep session. Modified therapy settings are applied, via the respiratory therapy system, during a second sleep session of the user. Second physiological data is received from the one or more sensors. The second physiological data is generated by the one or more sensors during the second sleep session. A set of sleep-related parameters is determined based on changes between the first physiological data and the second physiological data. One or more of a recommended therapy or recommended therapy settings is determined based on the set of sleep-related parameters.

Abstract: Detection of unintentional air leaks in a user interface (e.g., mask) of a respiratory therapy system (e.g., a positive air pressure device) is disclosed. One or more sensors (e.g., within a computing device, such as a smartphone) can be moved around relative to the user interface to determine a location and/or intensity of an air leak. The computing device can provide feedback regarding the location and/or intensity of the air leak to facilitate the user locating the air leak, and thus correcting the air leak. In some cases, augmented reality annotations can be overlaid on an image (e.g., live image) of the user wearing the user interface to identify the location of the air leak. The system can automatically detect the type of user interface being used and can provide tailored guidance for reducing the air leaks.

Abstract: A respiratory assistance component is disclosed that changes shape when an electrical charge is provided. The amount of electrical charge that is applied may be based on values, characteristics, or user controlled parameters of the respiratory assistance system. The component may be all or part of a patient interface, a tube, a flow generator, and/or a sleep mat.

Abstract: A respiratory therapy (RT) system including one or more acoustic generators (8500) to produce an inaudible acoustic signal. The acoustic generator(s), such as when coupled to a patient interface or air circuit of a respiratory therapy device, may provide inaudible acoustic signals indicative of one or more parameters, such as a flow rate or a pressure of the flow of air, or a type of or useable life of a component (e.g. patient interface). The system may have an acoustic receiver that may detect one or more acoustic signals from the acoustic generator, the RT system, the patient or the environment.