A mask apparatus for a respiratory treatment can permit delivery of breathable gas to a user. In one example, the mask may employ a frame and cushion to form a seal for both mouth and nose. The frame may be adapted for coupling with a respiratory treatment apparatus so as to permit communication of a pressurized gas from the respiratory treatment apparatus. The cushion, which may be foam, and a frame component may be made in an overmoulding process that moulds the frame onto a pre-formed foam cushion. Such a moulding process may form a mechanical and/or chemical bonding of the foam and mask frame component. The mask frame component may be a shell of plenum chamber, such as for both nose and mouth. Various features of the cushion may further promote sealing and comfort for the under the nose design.

A portable gas delivery system 10 may generally comprise a gas container 20, a regulator 30, an adapter 40 to couple the regulator 30 to the container 20, and a tube or cannula 50 and/or a mask 60 fluidly connected to the container 20. Methods of making and using the portable gas delivery system are also described.

Apparatus to permit a delivery of a flow of breathable gas to a patient's airways. In one version, a coupler extension may include a seat portion to permit use of a mask with a nasal cannula. In some versions, the coupler extension is configured to conduct the flow of gas to prongs of a nasal cannula. The seat portion can receive and seal with a cushion of a respiratory mask and may have a sealing bevel to promote sealing between the cushion of the respiratory mask and a facial contact surface of a user. In some versions, a conduit adapted to communicate a flow of gas may comprise a slit valve formed by a portion of the wall material of the conduit. In some versions, a nasal interface may include naris pillows to seal with and conduct a flow of breathable gas into a nares of a user. Each naris pillow may include a nasal projection to conduct a further flow of gas. The nasal projection may extend within the naris beyond the seal of the naris pillow.

An active breathing assistance apparatus is disclosed. A simple apparatus includes first, second and third sets of balloons in a base compartment; a compression component on or over the balloons, configured to expel air from the balloons; a tubing network connected to the balloons; a wearable breathing compartment at an outlet of the tubing network; first and second check valves in the tubing network, between the breathing compartment and (i) the third set of balloons and (ii) the first and/or second balloons, respectively; third and fourth check valves between atmospheric air and the first and second balloons, respectively; a cover securing the compression component to the base compartment; and a motion restricting component controlling movement of the compression component. The first and second sets of balloons are between the compression component and the base compartment, and the third set of balloons is between the compression component and the cover.

A neck-worn personal air filtration device for filtering aero-allergens and providing a zone of filtered air around or near a user's breathing zone is described. The device may include an air source adapted to deliver a pressurized airflow, a hose, and a neck-worn plenum including a filter. The airflow being caused to accumulate within the plenum and exit the plenum through the air permeable surface. The air is filtered by a filter for breathing by the user.

A humidifier assembly is configured to humidify a pressurized flow of breathable gas from a flow generator of a CPAP unit and includes a base configured to be attached to the flow generator, the base including a recess portion. A water receptacle is configured to be received within the recess portion of the base and includes a floor and a flange around an opening at the top of the water receptacle. A lid is hingedly attached to the base and is configured to pivot between an open position and a closed position. This lid includes a top wall, an outer depending wall, an inner depending wall in the form of a double wall, and an outlet pipe. A lid seal is attached to an underside of the top wall of the lid by way of a tongue and groove structure. A catch is located on the base and configured to lock the lid in the closed position.

Disclosed is an apparatus for treating a respiratory disorder in a patient. The apparatus comprises a pressure generator configured to deliver a flow of air at positive pressure to an airway of the patient through a patient interface, a sensor configured to generate a signal representative of respiratory flow rate of the patient, and a controller. The controller is configured to control the pressure generator to deliver ventilation therapy having a base pressure and a pressure support through the patient interface, detect an apnea from the signal representative of respiratory flow rate of the patient, control the pressure generator to deliver one or more probe breaths to the patient during the apnea, determine patency of the patient's airway from a waveform of the respiratory flow rate signal in response to one of the one or more probe breaths, compute an effective duration of the apnea based on the patency of the airway, and adjust a set point for the base pressure of the ventilation therapy in response to the apnea based on the effective duration of the apnea.

This disclosure describes embodiments of alarm systems and methods for use in devices such as medical ventilators. Embodiments described provide for an apparatus of an interactive multilevel alarm system. Embodiments of the alarms also provide, at a glance, current alarm and device status information and historical alarm information to the operator. Embodiments also direct interaction with the alarming functions of the device by the operator. In some embodiments, additional visual indicators may be provided to identify non-normal or noteworthy operating conditions, such as the use of a therapeutic gas by a mechanical ventilator, so that the operator can assess the impact of that non-normal condition on any current and historical alarm information simultaneously provided.

An example aerosol delivery device includes a mouthpiece having an airflow outlet, and an airflow passage extending between an airflow inlet and the airflow outlet. The example aerosol delivery device further includes a housing configured to receive a cartridge that includes an aerosolizable substance and a vapor element configured to heat the aerosolizable substance, and an internal power source configured to provide electrical power. The example aerosol delivery device further includes a controller coupled to the internal power source to receive a portion of the electrical power and configured to, when the cartridge is installed at the housing, cause the vapor element of the cartridge to heat the aerosolizable substance to release an aerosol into the airflow passage during an inhalation through the airflow outlet, and a connector configured to receive power from an external source to recharge the internal power source.

A small animal anesthesia system is provided, including a compressor, an anesthetizing gas generator and an anesthesia platform. The compressor has a first outlet and a first intake. The anesthetizing gas generator has a second outlet and a second intake. The first outlet of the compressor is connected to the second intake of the anesthetizing gas generator to supply gas, so that an anesthetizing gas is generated. The anesthesia platform includes a bearing plate, an anesthetic mask and a first anesthesia chamber. The anesthetic mask is configured to cover the face of the small animal, and connected to the second outlet of the anesthetizing gas generator, such that the small animal is anesthetized by the anesthetizing gas generated by the anesthetizing gas generator. The first anesthesia chamber is disposed on the bearing plate, and connected to the first intake of the compressor to recycle the anesthetizing gas.