A system for providing respiratory support to a subject includes a flow source for providing a gas at a selected flow rate, an invasive respiratory device couplable with an airway of the subject, and a connector for coupling with the invasive respiratory device. The connector includes a main body having a gases port for receiving a flow of gas from the flow source, an outlet port for outflow of gases from the main body, and a device port couplable with the invasive respiratory device. The gases port includes an inlet and an outlet. The connector is configured to receive the flow of gas from the flow source via the inlet of the gases port, and to deliver a jet flow of gas through the outlet of the gases port. The system may be configurable e.g. to generate a pressure of at least about 2 cmH.sub.2O about the device port when in use.

For a ventilating appliance (1) consisting of a ventilating device (2) having an air outlet channel (3) and an air inlet channel (4), two hoses (5, 6) which are connected to one of the two channels (3, 4) of the ventilating device (2), an air distributor (7), on which three openings (8, 9, 10) are provided, which are coupled to one of the two hoses (5, 6) of the ventilating device (2) and to a tube (11) which can be inserted into the mouth or nose space (22) of a living being (21), shall the ventilating appliance (1) be improved that a patient to be ventilated undergoes a release of mucus and its removed from the lung area with cost-effective measures, without the need for foreign objects or switching off the ventilating appliance (1). This is solved in that a respiratory tract therapy device (31) is inserted in the inhalation hose (5), in that an air flow (12) is generated by the ventilating device (2), through which an intermittent air pressure fluctuation arises with the respiratory tract therapy device (31), and in that the air pressure fluctuations generated in this way are passed on or transmitted in the lung region (23) of the living being (21).

A breathing apparatus includes a control unit configured to control operation of the breathing apparatus based on at least a first input value and a second input value. The breathing apparatus also includes a graphical user interface connected to the control unit. The control unit is configured to display a visual output on the graphical user interface including an area defined by a first axis and a second axis. In addition, the breathing apparatus includes an input unit configured to provide selection of a portion of the area. The control unit is configured to set the first input value in response to the position of the selected portion relative the first axis and to set the second input value in response to the position of the selected portion relative the second axis.

A gas flow reversing element is provided comprising a main piece defining at least one closable outlet opening, a branching piece extending from the main piece, a line connector connected to the distal end of the branching piece, a pressure connector connected to the main piece, the pressure connector being structured to be fluidly connected to a pressurized gas supply; and a nozzle being configured and arranged in the main piece in such a way that a gas flow flowing in the main piece from the pressure connector through the nozzle to the at least one outlet opening, with the at least one outlet opening being disposed in the second open position, a gas flow can also be generated in the branching piece in a direction toward the at least one outlet opening.

Embodiments of the present invention provide a device, system and method for providing high flow therapy interfaces for use in the treatment of respiratory conditions and in assisted respirations. A nasal cannula for delivery of respiratory gases includes at least one nasal insert and at least one flange coupled to the at least one nasal insert where the at least one flange extends in a radial direction from the at least one nasal insert is provided. In another aspect of the embodiment, the at least one flange is adapted to fit within the nostril of a patient. In another aspect of the embodiment, the at least one flange is a lobulated flange.

A ventilator, or a breathing assistance apparatus, is disclosed to ventilate patients who may have breathing difficulties, said device comprising a inspiratory pressure control duct configured to be immersed in a first body of fluid; a positive end-expiratory pressure control duct configured to be immersed in a second body of fluid; at least one valve connected to the peak inspiratory pressure control duct and to the positive end-expiratory pressure control duct, and at least one controller communicably connected to the valve to control rate of cycling of the valve, thereby controlling number of breaths per minute, and to control the duration of peak inspiratory pressure also known as inspiratory time.

A ventilator circuit apparatus is provided for the administration of nebulized drugs to a patient on a mechanical ventilator. The apparatus has a breathing circuit with an inspiratory limb and optionally an expiratory limb connected to the ventilator. A nebulizer is on the inspiratory limb interposed between the ventilator and a humidifying device such as a humidifier or a heat and moisture exchanger (HME). All breathing gases to the patient flow through the nebulizer. The nebulizer may remain in place on the ventilator circuit for the entire duration of treatment without the need to disassemble the nebulizer or interrupt the flow of breathing gases to the patient. The nebulizer may be a breath-enhanced jet nebulizer and breath-actuated. The nebulizer may produce an aerosol with a mass median aerodynamic diameter of about 2 m.

An installation for supplying gas to a patient, comprises an NO delivery device, an NO injection line with a valve device, a backup line that connects to the injection line and comprises a backup solenoid valve and a flow rate control device, and control means; and a medical ventilator that supplies a respiratory gas to a patient circuit to which the NO delivery device is connected. A flow rate sensor supplies the control means with a measurement signal of the gas flow rate in the patient circuit. In the event of interruption of reception of the measurement signal, the backup solenoid valve switches to an open position, the valve device switches to a closed position and the flow rate control device supplies the NO/N.sub.2 mixture at a pre-regulated backup flow rate, determined on the basis of the measurement signal supplied by the flow rate sensor, before said interruption.

A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency.

Various methods and systems are provided for performing nasal high flow therapy. In one example, a method for respiratory support includes: delivering an air and oxygen mixture for nasal high flow therapy to a patient at a flow setting, the flow setting determined based on a peak inspiratory flow obtained during a previous, spontaneous breathing mode during mechanical ventilation of the patient. The flow setting may be a flow rate of a heated and humidified mixture of air and oxygen delivered via a high flow nasal cannula.