A gas conduit for respiratory apparatus includes a lumen for passage of a breathable gas to a patient and a flexible conduit wall surrounding the lumen. The flexible conduit wall has a humidification apparatus for delivering water vapour into the gas passing through the lumen.

A respiratory mask assembly includes a frame having a channel and a cushioning element including a clip portion adapted for interference seal and removable retention in the channel. The cushioning element includes an interfacing portion constructed from foam and adapted to contact the patient's face in use. The interfacing portion may have a wider width than the clip portion.

The present invention includes a device for hypoxia training including a breathable gas source; a mask in fluid communication with the breathable gas source; a mask-state detector that uses one or more criteria to determine if the mask is being worn by a subject, wherein the mask-state detector is capable of communicating an indication of a mask-off state or a mask-on state; a flowmeter in fluid communication with the mask and coupled to the mask-state detector; and a pressure regulator in fluid communication with the mask and with the breathable gas source, and coupled to the mask-state detector, wherein the pressure regulator sets a first pressure at the mask when the mask-state detector communicates an indication of a mask-off state or a second pressure at the mask when the mask-state detector communicates an indication of a mask-on state.

A breathing gas delivery system comprising a gas flow controller and at least one breathing apparatus. The gas flow controller has a body having an on/off switch, at least one gas input, and at least one gas output. The breathing apparatus comprises a T-shaped gas input having a body with two arms and a free end, a breathing bag coupled to the free end of the T-shaped gas input, a length of tubing having two opposed ends, wherein one end is coupled to the other arm of the T-shaped gas input, a filter coupled the length of tubing, and a nasal assembly coupled to the filter.

This disclosure describes systems, methods, and devices related to emergency ventilators. An emergency ventilator may determine one or more adjustable parameters associated with controlling a ventilator device to supply air to a user, wherein the one or more adjustable parameters are determined based at least in part on breathing thresholds associated with the user. The emergency ventilator may evaluate the adjustable parameters to generate a control signal. The emergency ventilator may cause one or more paddles to articulate based at least in part on the control signal, wherein the one or more paddles squeeze a bag valve mask (BVM) attached to the ventilator device. The emergency ventilator may generate one or more outputs associated with a condition of the ventilator device. The emergency ventilator may display, on a display device, the one or more outputs.

A representative method includes: providing a tracheostomy valve assembly having a housing and a diaphragm, the housing defining an interior airflow path, the housing having an exterior surface, a distal opening extending from the exterior surface to the interior flow path and a proximal opening, the distal opening and the proximal opening communicating with the interior airflow path, the diaphragm being disposed within the housing along the interior airflow path, the diaphragm being biased to a closed position to prevent air from passing the diaphragm along the interior airflow path, the diaphragm being configured to selectively move to an open position to enable air to be drawn into the distal opening, passed the diaphragm, and out of the proximal opening in an inhaling direction in response to a proximal side of the diaphragm being exposed to a predetermined negative air pressure applied at the diaphragm as a suction force; and urging the diaphragm away from the closed position with an actuation surface, movably coupled to the housing, to adjust airflow restriction through the tracheostomy valve assembly.

In this disclosure, a breathing support system is presented which automates and regulates the use of a bag valve mask (commonly known as an ambu bag). The system can use mechanical actuators, sensors and a smart feedback control mechanism to automate and regulate the operation of the ambu bag to implement core functions of mechanical ventilation for life-saving applications. The system can also be used to provide better breathing support to newborns (e.g. to prevent hypoxia).

A respiratory therapy apparatus is operable to deliver multiple types of therapy to a patient. The apparatus includes a main housing and a nebulizer tray that selectively attaches to a bottom of the main housing. The apparatus also includes a filter housing unit having an antenna surrounding a pneumatic passage and a transponder chip coupled to the antenna. The main housing has also has an antenna that surrounds a respective pneumatic passage of a main outlet port of the apparatus. The main housing includes a reader that controls communication between the antennae. The main housing of the apparatus also has a pivotable hose support plate, a firmware upgrade port underneath part of the top wall of the housing, and a graphical user interface (GUI) that displays various user inputs for control of the apparatus and that displays various alert conditions that are detected.

A breathing circuit having a semipermeable membrane, an outer cage, and optionally an inner cage. The semipermeable membrane contains a poly(tetrafluoroethylene) membrane and a graphene anti-bacterial compound. The semipermeable membrane is affixed to the outer cage; optionally between the inner cage and the outer cage. Breathing circuits and breathing systems may contain such a cartridge.

A nasal insert may include a wall in the shape of a tube, the wall including a first end defining a first orifice and a second end defining a second orifice. The first end may have a diameter, diagonal measurement, or cross-sectional area larger than that of the second end. The first end may define at least one break in the wall, so that the first end incompletely encircles the first office. The second end may completely encircle the second orifice.