A shroud for a mask system includes a retaining portion structured to retain a frame, a pair of upper headgear connectors each including an elongated arm and a slot at the free end of the arm adapted to receive a headgear strap, and a pair of lower headgear connectors each adapted to attach to a headgear strap. The retaining portion, the upper headgear connectors, and the lower headgear connectors are integrally formed as a one piece structure.

A shroud for a mask system includes a retaining portion structured to retain a frame, a pair of upper headgear connectors each including an elongated arm and a slot at the free end of the arm adapted to receive a headgear strap, and a pair of lower headgear connectors each adapted to attach to a headgear strap. The retaining portion, the upper headgear connectors, and the lower headgear connectors are integrally formed as a one piece structure.

A valve for use with breathing assistance apparatus comprises first, second and third ports (21, 22, 23) for respective connection to a patient breathing tube, a first ventilation apparatus and a second ventilation application. The valve includes a bistable valve mechanism having a first stable configuration in which the first port is in fluid communication with the second port and not the third port; and a second stable configuration in which the first port is in fluid communication with the third port and not the second port. The valve has an actuator configured to transition the bistable valve mechanism between the two stable configurations and preventing the valve mechanism from maintaining a stable intermediate position between the first and second stable configurations. In this way a patient may be switched from one ventilation apparatus to another ventilation apparatus without sudden loss of pressure in the disconnecting circuit causing potentially infected aerosols to be released, and the without sudden loss of positive end expiratory pressure to the patients lungs.

A valve for use with breathing assistance apparatus comprises first, second and third ports (21, 22, 23) for respective connection to a patient breathing tube, a first ventilation apparatus and a second ventilation application. The valve includes a bistable valve mechanism having a first stable configuration in which the first port is in fluid communication with the second port and not the third port; and a second stable configuration in which the first port is in fluid communication with the third port and not the second port. The valve has an actuator configured to transition the bistable valve mechanism between the two stable configurations and preventing the valve mechanism from maintaining a stable intermediate position between the first and second stable configurations. In this way a patient may be switched from one ventilation apparatus to another ventilation apparatus without sudden loss of pressure in the disconnecting circuit causing potentially infected aerosols to be released, and the without sudden loss of positive end expiratory pressure to the patients lungs.

The invention relates to a patient interface comprising a plenum chamber, a seal-forming structure, and a positioning and stabilizing structure, as well as the method of operating the patient interface. The patient's interface is configured to leave a patient's mouth uncovered or if the seal-forming structure is configured to seal around a patient's nose and mouth, the patient interface is configured to allow the patient to breath from the ambient in an absence of the flow of pressurized. The positioning and stabilizing structure includes headgear, and the seal-forming structure and at least a portion of the headgear is formed from a one piece construction of textile material. In another embodiment, the seal-forming structure and/or the positioning and stabilizing structure includes an adaptive portion that adjusts based on usage conditions. In another embodiment, the positioning and stabilizing structure, the seal-forming structure and/or the plenum chamber includes and/or is formed of a textile material, and the textile material includes at least one magnetic thread constructed of magnetic material to provide a magnetic interaction between a first part of the patient interface and a second part of the patient interface. In another embodiment, a stiffener is coupled to the plenum chamber, the seal-forming structure, and/or the positioning and stabilizing structure. In another embodiment, at least one of the plenum chamber and the seal-forming structure includes a textile material; and wherein the textile material includes a surface structure that limits adhesion of debris. A UV cleaning receptacle of the patient interface is also disclosed.

A tube protective sheath or tip is provided for use with a nasal RAE tube in order to minimize bleeding and trauma often associated with passage of a nasal RAE tube through the nasal cavity. The tube protective sheath or tip includes a hollow cylindrical portion that extends and fits snugly over the tube tip of the nasal RAE tube. A tapered, pointed, or rounded distal portion is connected to the hollow cylindrical portion. As the nasal RAE tube is inserted through the patient's nasal cavity, the nasal RAE tube protective sheath or tip spreads the passages gently and smoothly, allowing the nasal RAE tube to follow it into the pharynx. Strings or extensions are attached to the tube protective sheath or tip and are used to prevent loss of the protective tip in the patient's nasal cavity, pharynx, or trachea during the intubation process.

A tube protective sheath or tip is provided for use with a nasal RAE tube in order to minimize bleeding and trauma often associated with passage of a nasal RAE tube through the nasal cavity. The tube protective sheath or tip includes a hollow cylindrical portion that extends and fits snugly over the tube tip of the nasal RAE tube. A tapered, pointed, or rounded distal portion is connected to the hollow cylindrical portion. As the nasal RAE tube is inserted through the patient's nasal cavity, the nasal RAE tube protective sheath or tip spreads the passages gently and smoothly, allowing the nasal RAE tube to follow it into the pharynx. Strings or extensions are attached to the tube protective sheath or tip and are used to prevent loss of the protective tip in the patient's nasal cavity, pharynx, or trachea during the intubation process.

A therapeutic vaporizer inhalation bag attachment system with an integrated valve is disclosed. The attachment system includes a body having a lumen extending between the two openings of the body, a bag coupling, and a valve positioned within the lumen. A method of using the inhalation bag attachment system is also disclosed.

An endotracheal tube to bag valve device connecting assembly for quick access to an endotracheal tube for suctioning includes a first tube and a second tube that are coupled to a hinge so that the first tube is positioned to be swiveled relative to the second tube to align the first tube with the second tube, wherein the first tube and the second tube define a pipe. A first end of the pipe is configured to selectively couple to a patient valve of a bag valve device. A second end of the pipe is configured to selectively couple to an endotracheal tube. The pipe is configured to allow flow of gas from the bag valve device to the endotracheal tube. The first tube is positioned to be swiveled on the hinge so that the second tube is configured to insert a suction tube into the endotracheal tube to clear an airway.

Devices for delivering a controlled concentration of an agent are provided. The device includes a reservoir for the agent and a flow control portion operably connected to the reservoir. The device also includes a valve for releasing the agent from the flow control portion and a pump for flowing air to mix with the agent released by the valve and for flowing the agent and air mixture out of the device. Methods of delivering a vaporized agent to a subject are also provided. The methods include storing a liquid agent in a reservoir of a device and flowing the agent into a flow control chamber to change the agent to a gas. The methods also include mixing the agent in gas form with air and flowing the agent and air mixture out of the device to be delivered to a subject.