A respiratory system provides conditioned respiratory gases to a patient within a controlled temperature environment. A humidification apparatus has an inspiratory tube that may extend to a patient interface. The inspiratory tube may have a reduced length. A thermal insulation component may insulate at least a portion of the inspiratory tube. As a result, less of the inspiratory tube may be exposed to the surrounding ambient environment, which may reduce condensate formation within the inspiratory tube and heat loss to the surrounding ambient environment. The humidification apparatus may be directly coupled to the controlled temperature environment.

The present invention provides a respiratory adapter for inhaled media deposition in the lungs and airways. The respiratory adapter provides an inspiratory arm and an expiratory arm, wherein the two arms are joined by a bypass flow bridge. A system of valves, such as one-way valves, directs the flow of gas and media through the respiratory adapter to improve media deposition efficiency and to prevent re-breathing of exhaled gas.

The gases temperature supplied to a patient when the patient is undergoing treatment such as oxygen therapy or positive pressure treatment for conditions such as Obstructive Sleep Apnea (OSA) or Chronic Obstructive Pulmonary Disease (COPD) is often measured for safety and to enable controlling of the humidity delivered to the patient. The invention disclosed is related to measurement of properties, particularly temperature (thermister), of gases flowing through a heated tube, supplying gases to a patient, which utilises the heating wire within the tube.

An apparatus for providing a supply of humidified pressurized breathable gas to a patient interface, the apparatus comprising: a flow generator configured to pressurize a supply of breathable gas; a humidifier configured to provide water vapour to humidify the supply of pressurized breathable gas; a heated tube configured to be connectable to the humidifier to heat and deliver the humidified supply of breathable gas to the patient interface; a sensor configured to measure a property of the humidified supply of breathable gas in the heated tube; a controller configured to control power provided to the heated tube and control operation of the flow generator; and a set of low pass filters coupled between the sensor and the controller and/or a set of high pass filters coupled between the sensor and ground.

An apparatus for generating and providing a pressurised breathable gas to a patient's airways includes a respiratory pressure therapy (RPT) device having an engagement port pneumatically and electrically coupled to the RPT device, and an air delivery tube configured to engage the engagement port so as to pass a flow of breathable gas to a patient interface. The air delivery tube includes electric contacts associated with a heating and/or a sensing arrangement. The air delivery tube includes a locking collar rotatably movable between (1) an unlocked position to allow connection/disconnection of the air delivery tube to/from the engagement port, and (2) a locked position to releasably lock the air delivery tube to the engagement port. The air delivery tube is structured and arranged to, when the locking collar is rotated into the locked position, pneumatically connect to the engagement port and define an operational configuration of the apparatus.

Described herein are devices, systems and methods for monitoring the use of a nebulized medication, such as can be administered using a nebulizer. These can be used for monitoring a patient undergoing treatment for COPD and improve compliance to the recommended therapy. Monitored parameters include flow, humidity and acceleration and provide data as to the quantity and quality of nebulizer use.

The present disclosure pertains to a pressure support system configured to provide pressure support therapy to a subject, wherein the pressure support system comprises a subject interface heater configured to controllably heat a pressurized flow of breathable gas to a target temperature that is offset from a baseline temperature. The breathable gas baseline temperature target offset ensures the gas delivered to the subject is delivered at a comfortable temperature and/or humidity level that does not cause airway dryness or result in condensed water in the subject interface. In one embodiment, the pressure support system comprises one or more of a pressure generator, a subject interface, a subject interface heater, one or more subject interface temperature sensors, one or more baseline temperature sensors, one or more general sensors, a humidifier, a user interface, a processor, electronic storage, and/or other components.

A device (102) provides respiratory treatment for SDB (including mild OSA) and other respiratory conditions. A flow generator warms and humidifies gas at controlled flow levels. For example, the device (102) delivers breathable gas to the upper airway at flow rates of about 10-35 Liters/minute. Levels of flow rate, temperature and/or humidification of the device may be automatically adjusted in response to the detection of SDB events. The device may also automatically deliver adjustments of any of the levels in accordance with detected phases of respiratory cycles. In some embodiments, the device automatically delivers distinct levels to either of the nares based on independent control of flow to each nare. A warm-up procedure controls temperature and humidity at a desired target during a ramp-up of flow to the set therapy level. A cool-down procedure controls temperature above the dewpoint to avoid condensation internal to the device and patient interface.

A positive exhalation pressure device (1) is described. The device (1) comprises a housing (2) having an annular chamber (5), a chamber inlet (6) configured to permit air into the chamber, a chamber outlet (7) configured to permit air out of the chamber, and a mouthpiece (8) in fluid communication with the chamber inlet. A movable body such as a ball (3) is disposed in the housing within the annular chamber and configured to revolve around the annular chamber in response to flow of air through the chamber from the chamber inlet to the chamber outlet. The movable body is configured to at least partially block the chamber outlet as it revolves around the annular chamber causing cyclical fluctuations in airflow resistance.

A portable breathing machine includes a body case (100), wherein: a fan box (101), a cut-off device (108) and a control device (113) are arranged in the body case (100); a fan (8) is arranged in the fan box (101) through a fan noise reduction device (102); an air outlet of the fan box (101) is connected with an internal breathing tube (107); the cut-off device (108) is arranged on the internal breathing tube (107); an air outlet of the cut-off device (108) is connected with an external breathing tube (104) and a mask (105); the fan noise reduction device (102) includes a lower flexible cover (3) and an upper flexible cover (5); the lower and upper flexible covers cooperate to form an enclosed cavity for containing the fan (8). A working noise of the breathing machine is decreased to below 15 decibel.