A patient interface including a seal-forming structure having a mouth portion that forms at least part of the mouth plenum and is configured to seal around the patient's mouth and a nasal portion that is configured to seal with the patient's nares. The patient interface further includes a vent structure with a main body that is configured to be secured to the mouth portion and includes a vent wall with a plurality of vent holes, a receptacle, and a pair of anchor sockets located on opposing lateral sides of the receptacle. A cover for the vent includes a pair of anchor pegs on lateral sides of the cover. The anchor pegs are configured to be inserted into the anchor sockets to secure the cover to the main body. A diffuser is received within the receptacle between the anchor sockets and is sandwiched between the main body and the cover.

A method of an apparatus control pressure in the patient interface. A vent valve may be used with a respiratory device, where the vent valve may selectively block fluid communication between components, such as the flow generator, the patient interface, and/or the vent. An expiratory flow model may be used to determine an expiratory characteristic such as an expiratory flow rate or pressure in the patient interface where an indicative measure may not be available. The expiratory flow model may receive inputs based on a measure of the patient's respiration, such as the tidal volume, peak inspiratory flow rate or length of inspiration. The expiratory characteristic may be used by a controller to control a pressure in the patient interface to provide respiratory therapy to a patient at or close to a target pressure.

A ventilation gas cooling apparatus is configured in a modular form adapted for selective removable engagement to a ventilator. The apparatus includes a gas inlet port, a gas delivery port, a pressure sensing port, and a thermoelectric cooler. The inlet port is fluidly connectible to a source of therapeutic breathing gas at an external end and is fluidly connectible to an inlet of the ventilator at an internal end. The delivery port is fluidly connectible to a patient circuit at an external end and is fluidly connectable to an outlet of the ventilator at an internal end. The pressure sensing port is fluidly connectible to both a pressure sensing port of the ventilator and to the patient circuit. The apparatus may further include a cooling fluid system operative to circulate either a gas or liquid coolant along at least a portion of a multi-lumen tube integrated into the patient circuit.

A steaming station may include a hinged lid that allows the user to place a concave bowl with hot liquids within the inside cavity. Once the steaming station is closed with hot liquids and medicinal herbs, the user can then kneel or sit with the steaming station in front of them and place their face onto the rounded cavity of the lid to receive the benefits of the steam for extended periods of time.

A system for conducting inhalation studies includes an inhalation exposure chamber and an aerosol delivery line connected to the inhalation exposure chamber. The aerosol delivery line is configured to produce a bi-directional and symmetrical presentation of aerosol to the inhalation exposure chamber. A laminar flow element is configured to create an ante-chamber where complete and turbulent mixing of the aerosol occurs. A radial exhaust and the laminar flow element enable laminar flow of the aerosol through the inhalation exposure chamber.

A device and associated method for the dispensation of mists for therapeutic use, comprising: a dispensing member (2) for dispensing an air flow (3) within which micronized particles of a liquid or solid therapeutic substance are dispersed; a chamber (11) having at least one inlet (12) for said air flow (3) generated by the dispensing member (2) and at least one outlet (13) for said air flow (3) present inside the chamber (11) itself; and a communication conduit (10) interposed between said dispensing member (2) and said chamber (11) in order to introduce the air flow (3) into the chamber (11) itself; said chamber (11) being switchable between an operative condition of maximum volume in which it internally defines a space (20) for containing at least one user, and a non-operative condition of minimum volume suitable for transport and/or storage.

A customizable mask including a conforming seal is configured to utilize the physical process of granular jamming to enable it to adapt to a wide range of facial geometries. The mask may include a frame having a perimeter and a conduit connection, a conforming seal positioned along the perimeter of the frame; the conforming seal may include a sealing surface and a connecting surface, the connecting surface configured to mate with the perimeter of the frame, and the sealing surface configured to conform to a users' face. The conforming seal may further include an outer casing, granular material contained within the outer casing, and a vacuum connection. The mask may also include a similarly configured conforming frame. Further disclosed are methods of forming such masks.

A device for providing a known concentration of blended air and oxygen, or oxygen, to an individual which incorporates a face mask inside a hood, thereby preventing aerosolization of potentially harmful exhaled gases and controlling condensation issues within the hood while under pressurized conditions. The air tight seal required to allow placement and removal of the hood on the individual will be manufactured using injection molded elastomers to over-mold injection molded rigid plastic components.

The present invention provides systems, methods, and apparatus for applying a hyperoxic therapy delivery system to a patient; administering hyperoxic gas to the patient according to an oxygen dose-response model; and adjusting the administration of the hyperoxic gas to the patient based upon monitored parameters related to a condition of the patient. Numerous additional features are disclosed.

A valve apparatus comprises a housing having an inlet port, an outlet port, a selectable flow port, and a vent. The apparatus further comprises a valve member which is moveable between:

a first position in which a flow path between the inlet port and the selectable flow port is substantially blocked and in which the vent is fluidly connected to the selectable flow port; and

a second position in which a flow path between the selectable flow port and the vent is blocked, and the selectable flow port is fluidly connected to the inlet port.