A breathing assistance apparatus is configured with features that improve serviceability of the apparatus. The apparatus can include animations to provide instruction regarding correcting easily-identified fault conditions and to provide instruction regarding routine maintenance routines. The apparatus also can be configured with top level control menus that are obscured in a manner to limit manipulation of the top level control elements by unauthorized users.

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 cartridge comprising layers of adsorbent sheet is described. The cartridge includes an indicator that characterizes the consumption state of the adsorbent within the cartridge. The indicator is applied in a way such that discrete areas of indicator are visible. These discontinuous areas of indicator may be applied to the outside surface of the cartridge. Alternatively, the discontinuous areas may be formed by cutting windows in the outermost layer of the cartridge and either coating indicator on the layer beneath the window, placing an indicator layer between the window and the layer beneath it or filling the window with an indicating plug of material so that the indicator is visible from the outside of the cartridge. The indicator layer and indicator plug embodiments allow the use of any indicator with any adsorbent.

Methods and devices for blending of fluids are disclosed. A fluid blender has a fluid inlet to receive a fluid, a nozzle with a convergent shape tapering down towards a nozzle end, a mixing chamber with holes arranged on a wall, and a mixture outlet having a divergent shape. In some aspects, a rotary sleeve is externally placed around the wall. The rotary sleeve has slits with a variable shape along its lateral extension. In other aspects the fluid blender has inlet tubes with check valves and a blending tube. An inlet tube has an adjustable orifice to adjust flow inside the blender.

Disclosed are apparatus, systems and devices for providing modular connectivity to a respiratory therapy device. Certain forms relate to an apparatus for supplying a flow of breathable gas at positive pressure for respiratory therapy comprising a pressure generator in a housing, at least one electrical connector to connect to a connectivity module, and a cavity for receiving the connectivity module. Different forms of connectivity module may be provided. This allows for flexibility of connectivity in a respiratory device while allowing for simple installation and removal of the connectivity module.

The present disclosure is directed to a plurality of air quality devices configured to be held in a user's mouth and configured to increase at least one of humidity and temperature and constitution of air inhaled. There are passive and active systems that allow for improved physical and lung performance.

An obstructive sleep apnea detection device including an optical engagement surface adapted to engage a user's skin; a light source adapted to emit light from the optical engagement surface; a photodetector adapted to detect light at the optical engagement surface and to generate a detected light signal; a position sensor adapted to determine patient sleeping position; a controller adapted to determine and record in memory blood oxygen saturation values computed from the detected light signal and user position information from the position sensor; and a housing supporting the optical engagement surface, the photodetector, the light source, the position sensor, and the controller.

One embodiment of the present invention provides a multifunctional face mask system adapted to receive a nebulizer system, enabling a user to be treated by a nebulizer medication, while simultaneously providing a hygienic barrier between the user and their external environment via at least one filter component. The present invention further provides a multifunctional face mask system that is self-supporting, thereby enabling a user to wear the mask system in a portable manner. The present invention, in other embodiments, includes the bonding between at least one filter component and its corresponding filter window, to be produced by a selective mold behind injection molding process.

The present disclosure pertains to a therapeutic gas delivery system (8) including a pressure generator inlet apparatus (10) configured to facilitate filtering of gas drawn into the inlet (14) of the pressure generator (16) of the system. The apparatus comprises a body (12) and a support (24). The body is configured to removably engage the inlet of the pressure generator and receive a particulate filter (18). The body forms an orifice (19) configured to conduct gas that has passed through the filter to the pressure generator inlet. The support is coupled to the body at or near the orifice. The support is configured to extend from the body toward the filter and support the filter. The support is configured to resist collapse of the filter into the orifice caused by gas flowing through the filter to the pressure generator inlet.

An oxygen concentrator 100 apparatus and a method thereof implement operations control to efficiently release oxygen enriched gas to reduce potential waste. The control methodology may include generating a profile such as a minimum inhalation flow profile of the user. The profile may be based on a size parameter of the user. The method may determine one or more control parameters characterizing a bolus of oxygen enriched gas based on the generated flow profile. The control methodology may then generate a bolus release control signal, such as for a supply valve, according to the determined one or more control parameters. The oxygen concentrator may then, with the control signal, release and deliver a bolus of oxygen enriched gas for a user such as for reducing waste.