Abstract: A method for providing respiratory support to a patient includes intubating the patient with an invasive patient interface having a sealable member operable to form a sealing engagement with the patient's airway. While the patient is intubated, the sealable member is operated to form a non-sealing arrangement of the invasive patient interface within the patient's airway and a flow of respiratory gas is provided to the patient via the invasive patient interface. This respiratory support is provided during absence of spontaneous breathing.

Abstract: A method of determining a respiratory parameter of a patient during inspiration when receiving respiratory support and their mouth is closed comprising: providing an apparatus gas flow with a flow rate and a gas proportion to a patient, measuring a gas proportion of a composite gas inflow to the patient, determining a composite gas inflow flow rate using one or more of: apparatus gas flow gas proportion, apparatus gas flow flow rate, composite gas inflow gas proportion, ambient gas proportion, and from the composite gas inflow flow rate, determining one or more respiratory parameters.

Abstract: The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.

Abstract: A pressure regulating or pressure relief device comprises an inlet and an outlet chamber with an outlet. The inlet is in fluid communication with the outlet chamber. A valve seat is located between the inlet and the outlet. A valve member is biased to seal against the valve seat, and displaces from the valve seat by an inlet pressure at the inlet increasing above a pressure threshold to allow a flow of gases from the inlet to the outlet via the outlet chamber. The flow of gases through the outlet causes an outlet pressure in the outlet chamber to act on the valve member together with the inlet pressure to displace the valve member from the valve seat.

Abstract: There is disclosed system for oxygenating a patient in relation to anaesthesia using high flow gas delivery. The system has a flow source, and a controller for determining oxygenation requirements of the patient before or during anaesthesia. A method of oxygenating a patient in relation to anaesthesia using high flow gas delivery is also disclosed. The method determines oxygenation requirements of the patient before or during anaesthesia.

Abstract: A connector is provided for coupling with an invasive patient interface for providing respiratory support to a patient. The connector comprises a connector body having: (i) an inlet port couplable with a flow source providing a flow of respiratory gas; (ii) a gases exit port; and (iii) a device port couplable with the invasive patient interface. The connector also has a lumen having a first end and a second end. The connector body defines a gas flow path between the inlet port and both the device port and the lumen first end and the lumen second end is disposed outside the device port. The lumen provides improved CO2 clearance. Some embodiments provide for gas sampling and/or variable expiratory resistance.

Abstract: The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.

Abstract: 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 cmH2O about the device port when in use.

Abstract: The invention relates to a ventilator (1), at least comprising a gas supply device (2) and a gas discharge device (3), for supplying a first fluid flow (4) to a respiratory tract (5) of a patient and for discharging a second fluid flow (6) from the respiratory tract (5) back into the ventilator (1) or to a surrounding area (7); a pressure sensor (8) for sensing a pressure (9) in the respiratory tract (5); and a control device (10) for operating the ventilator (1) and for determining an alveolar pressure Palv (9) and/or a profile of an alveolar pressure Palv (9) of a respiratory tract (5) of a patient. The invention also relates to a method for determining at least one alveolar pressure Palv (9) and/or a profile of an alveolar pressure Palv (9) of a respiratory tract (5) of a patient with a ventilator (1).

Abstract: The invention relates to a ventilator (1) at least comprising: a gas supply device (2) and a gas discharge device (3), for supplying a first fluid flow (4) to a respiratory tract (5) of a patient and for discharging a second fluid flow (6) from the respiratory tract (5) back into the ventilator (1) or to a surrounding area (7); a pressure sensor (8) for sensing a pressure (9) in the respiratory tract (5); and a control device (10) for operating the ventilator (1); wherein the fluid flow (4, 6) can be set to a constant value at least during an inspiration process (11) and an expiration process (12). The invention further relates to a method for determining at least a tissue-related resistance of a patient by means of a ventilator (1).

Abstract: 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.

Abstract: A method of determining a duration of safe apnoea. Information is obtained relating to a respiratory indicator, and a duration of safe apnoea is determined from the obtained information. A respiratory therapy system has one or more patient interfaces. A processor is configured to determine a duration of safe apnoea based on obtained information relating to a respiratory indicator.

Abstract: The present invention relates to a plurality of ventilation devices, to ventilation devices having visualization apparatuses, and to methods for operating the ventilation devices. The intent is to minimize the energy input into the at least one airway of a patient as a result of the ventilation.

Abstract: An apparatus for oxygenation and/or CO2 clearance of a patient. The apparatus 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. 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 at least two oscillating components. One oscillating component has a frequency based on the heart activity and/or trachea flow of the patient. One oscillating component has a frequency to: promote bulk gas flow movement, or promote mixing.

Abstract: Disclosed herein is a method and apparatus for determining a parameter of a gas present in an exhaled gas flow comprising: providing an apparatus gas flow with a time-varying parameter to a patient, measuring a parameter of the gas present in a composite gas outflow from the patient, and determining the parameter of the gas present in the exhaled gas flow using the measured parameter of the gas present in the composite gas outflow and the time-varying parameter.

Abstract: The present invention relates to a plurality of ventilation devices, to ventilation devices having visualization apparatuses, and to methods for operating the ventilation devices. The intent is to minimize the energy input into the at least one airway of a patient as a result of the ventilation.

Abstract: A method of determining a duration of safe apnoea. Information is obtained relating to a respiratory indicator, which can include information relating to a potential respiratory equilibrium, and a duration of safe apnoea is determined from the obtained information.

Abstract: 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.

Abstract: A method of determining a duration of safe apnoea. Information is obtained relating to a respiratory indicator, and a duration of safe apnoea is determined from the obtained information. A respiratory therapy system has one or more patient interfaces. A processor is configured to determine a duration of safe apnoea based on obtained information relating to a respiratory indicator.

Abstract: The present invention relates to a plurality of ventilation devices, to ventilation devices having visualization apparatuses, and to methods for operating the ventilation devices. The intent is to minimize the energy input into the at least one airway of a patient as a result of the ventilation.