An nCPAP device for as sting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a nozzle, a channel, and at least one port. The nozzle emits a jet stream into the channel in a direction of a patient side thereof. The port fluidly connects the channel to ambient, and promotes entrainment of ambient air with the jet stream. In some embodiments, the channel forms a ramp feature directing exhaled air toward the jet stream in an angular fashion. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs.

A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

A system and method for reducing the risk of fire in an oxygen delivery system. The system may include an oxygen delivery device with a controller in communication with a flow control valve to control a flow of oxygen through a tubing from an oxygen source to a patient interface. The controller may be programmed to close the flow control valve for a predetermined time period at a predetermined time interval to cause a periodic oxygen pause, the periodic oxygen pause to remove oxygen that may serve as an oxidizer when a fire is present inside at least one of the patient interface and the tubing.

Provided are a method for controlling oxygen-containing gas output by an oxygen provider, The method includes: acquiring a first pressure measurement of the oxygen-containing gas at the oxygen provider side; determining a pressure estimation of the oxygen-containing gas at the patient side based on the first pressure measurement, wherein the oxygen-containing gas experiences a pressure drop on the gas pathway to arrive at the patient side; and controlling a target parameter of the oxygen-containing gas output by the oxygen provider based on the pressure estimation. With the method or device for controlling oxygen-containing gas output by an oxygen provider, an automated solution to control the oxygen-containing gas based on a pressure measurement at the oxygen provider side is provided, and the complexity of a medical device for oxygen therapy is reduced.

A cannula for providing respiratory therapy to a patient includes a first nasal prong having a proximal end attached to a cannula body and a distal end for insertion into a nare of the patient. The first nasal prong defines a lumen for a flow of breathing gas from a source of breathing gas to the nare of the patient, and the first nasal prong has a variable geometry such that a cross-sectional area of the lumen at the distal end of the first nasal prong varies with a flow rate of the breathing gas. Varying the cross-sectional area of the first nasal prong lumen with the flow rate of the breathing gas enables the first nasal prong to maintain a high velocity flow to the nare for effective flushing of the patient's airway.

Systems, methods, and devices for humidifying a breathing gas are presented. The system includes a source of pressurized breathing gas, a vapor transfer unit external to the source of pressurized breathing gas, a first gas tube connecting the source of pressurized breathing gas to the gas inlet of the vapor transfer unit and having a first length, a liquid supply having a heater that heats liquid, a first liquid tube coupling the liquid supply to the liquid inlet of the vapor transfer unit, and a second gas tube having a second length and connecting the gas outlet to a patient interface. The first length is greater than the second length. The vapor transfer unit includes a gas passage, a liquid passage, and a membrane separating the gas passage and the liquid passage. The membrane is positioned to transfer vapor from the liquid passage to the gas passage.

A medical double configurational and multiple ports mask preferably including a multifunctional plug with or without a nebulizer oxygen delivery adaptor (“NODA”) attachment. The mask fits over the mouth and the nose and preferably contains at least two possible nose/face configurational solutions. The mask can be secured over the head with a stretchable or non-stretchable material. The position of the preferred triple ports of the double configurational mask provides improved structural construction reflecting different patient's nose/face features and allows for different types of procedures to be performed at the same time regardless of the patient's head/neck position. The multifunctional plug can be used for a variety of applications. The mask can be used with existing standardized disposable respiratory care equipment, including a simplified improved nebulizer oxygen adaptor (“SINODA”) and/or multifunctional use nebulizer oxygen delivery adaptor (“MUNODA”) attachment.

Several methods of supporting respiratory function of a patient before, during and/or after a medical procedure are disclosed. In certain arrangements, supporting respiratory function while a patient is under general anaesthesia can include providing a high gas flow a high gas flow that is greater than 15 L/min while the patient is under general anaesthesia. In certain arrangements, a method of providing ventilation while a patient is under general anaesthesia involves providing only a gas flow delivered through a nasal interface that is greater than 15 L/min while the patient is under general anaesthesia

A system for delivering oxygen comprises an oxygen source; a ventilator operatively connected to the oxygen source to receive a supply of oxygen therefrom; a valve having a) an open position in which the ventilator receives the supply of oxygen from the oxygen source and b) a closed position in which the ventilator is not in fluid communication with the oxygen source; a sensor configured to measure breath flow information for the patient; and a computer system to: determine a volume of gas delivered to the patient during a breath cycle of the patient and an inspiratory volume of gas delivered to the patient during an inspiration phase of the breath cycle by using the breath flow information; and provide input to the valve based on the determined volumes, the provided input causing a movement of the valve between the open and the closed positions.

The present invention relates to a device for a respiration arrangement. The device comprises a conduit having a first opening connectable to an air/gas source such as a resuscitation bag, and a second opening connectable to a face mask, such that a fluid pathway along a longitudinal direction of the conduit is established from the first opening to the second opening. The device further comprises a flow constriction, arranged in the conduit which upon fluid flow through the conduit results in a pressure difference over the flow constriction, the flow constriction at least partly comprising a laminar flow section, wherein the device further comprises at least one pressure connecting port arranged in pressurized communication with fluid between the flow constriction and the first opening, and wherein the pressure connecting port is arranged in the longitudinal direction of the conduit.