Described is an apparatus for oxygenation and/or CO2 clearance of a patient, comprising: a flow source or a connection for a flow source for providing a gas flow, a gas flow modulator, a controller to control the gas flow, wherein the controller is operable to: receive input relating to heart activity and/or trachea gas flow of the patient, and control the gas flow modulator to provide a varying gas flow with one or more oscillating components with a frequency or frequencies based on the heart activity and/or trachea flow of the patient.

The invention relates to a multifunctional applicator for mobile use having an applicator plug, a supply tube, a Y-piece, fork tubes and a nose piece with prongs, wherein the applicator plug comprises a pressure chamber that has a humidifier interface for connection with a high flow therapy device, an oxygen supply port having an opening diameter of at least 1 mm, and a therapy air supply port for the supply tube, the humidifier interface and the oxygen supply port within the pressure chamber each having an upper and a lower valve seat that are provided with a seal and a valve body being movable between said valve seats and said valve body being subjected to a force by a helical compression spring from the direction of the oxygen supply port and on the other hand being pushed against the upper valve seat by an actuating element of the high flow therapy device when the applicator plug is locked in place on the high flow therapy device.

A dual pressure respiratory assistance device including a gas source which supplies a flow of gas into an air tube having a bubbler branch and a patient branch. A first tube that is connected to the bubbler branch is at least partially submerged in a fluid. An oscillatory relief valve cycles between first and second configurations. The relief valve includes an oscillating member which captures gas released through at least one hole in the first tube when the oscillating member is in a first position. The gas in the oscillating member causes the oscillating member to rise to a second position, wherein gas is released from the oscillating member and the at least one hole is blocked when the oscillating member reaches the second position.

A method of drying an anesthesia breathing system includes removing a CO.sub.2 absorber from the anesthesia breathing system, when the CO.sub.2 absorber is connected to an absorber inlet port and an absorber outlet port. The method further includes moving a bag-to-vent flow diverter to an intermediate position so as to simultaneously open both a bag channel and a ventilator channel, and connecting an inspiratory port and an expiratory port of the anesthesia breathing system together. A dry gas source is connected to an absorber outlet channel, and then a dry gas flow is provided through the bag channel and the ventilator channel so as to dry out moisture from a bag circuit and a ventilator circuit of the anesthesia breathing system.

The present disclosure relates to determining a corrected exhaled gas measurement during high flow respiratory therapy. Measuring exhaled gas concentration during high flow respiratory therapy is difficult and inaccurate due to a phenomenon known as flushing. The high flows delivered to the patient flush the dead space in the conducting airways, which causes a dilution effect that results in underestimated or overestimated exhaled gas measurement depending on the gas composition delivered by the high flow system. This can lead to incorrect clinical measurements and diagnoses. Various algorithms are disclosed herein to account for the dilution effect caused by flushing, allowing for the method of measuring gas concentrations to still be used accurately for clinical measurements.

A system and method for providing a therapy to a subject may include a lumen configured to be coupled to a portion of a respiration passage of the subject to receive air respired by the subject. A sensor is configured to monitor the lumen and generate a signal based on the air respired by the subject. A pressure pulse delivery system is configured to deliver a pressure pulse along the lumen to the subject and a reservoir of therapeutic agent is coupled to the lumen. A processor is configured to receive the signal from the sensor, determine, from at least the signal, an exhalation period of the subject, and based on the exhalation period, cause the pressure pulse delivery system to deliver a pressure pulse to the subject. Following the pressure pulse, the processor can cause the therapeutic agent to be delivered from the reservoir.

Systems, methods, and devices for humidifying a breathing gas are presented. The system includes a base unit, a vapor transfer unit, a nasal cannula, and a liquid container. The base unit includes a blower. The vapor transfer unit is external to the base unit and includes a gas passage, a liquid passage, a gas outlet, and a membrane separating the gas passage and the liquid passage. The membrane permits transfer of vapor into the gas passage from liquid in the liquid passage. The nasal cannula is coupled to the gas outlet. The liquid container is configured to reversibly mate with the base unit.

Objective Pulmonary Function (PF) evaluation for respiratory fatigue is vital to the diagnosis and management of many pediatric respiratory diseases in the intensive care, emergency and outpatient settings. A non-invasive PF instrument utilizes sensors and software to access respiratory breathing patterns, vital parameters, asynchrony and measures the work of breathing. Software algorithms predict respiratory fatigue. The hardware includes a microcircuit board that individually links to rib cage (RC) and abdominal (ABD) inductance bands. The bands wirelessly transmit changes in RC and ABD circumference. Point-of-care, real-time indices of respiratory work, breathing patterns and respiratory fatigue indices are developed on a user-friendly graphical user interface. The diagnostic data can later be securely emailed as an attachment for entry into patients' electronic medical records or sent to a caretaker's computer, or used directly to control a respiratory therapy device. The system can also be used for telemedicine homecare.

Systems, methods, and devices for humidifying a breathing gas are presented. The system includes a base unit, a vapor transfer unit, a nasal cannula, and a liquid container. The base unit includes a blower. The vapor transfer unit is external to the base unit and includes a gas passage, a liquid passage, a gas outlet, and a membrane separating the gas passage and the liquid passage. The membrane permits transfer of vapor into the gas passage from liquid in the liquid passage. The nasal cannula is coupled to the gas outlet. The liquid container is configured to reversibly mate with the base unit.

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.