An additive gas delivery apparatus for delivery of additive gas to inspirational gas can be set to deliver the additive gas according to a dosing setting in normal therapy, and can be set to deliver according to a backup dosing setting in response disruption of signals representing data for controlling the delivery of additive gas according to the dosing setting in normal therapy. An additive gas delivery apparatus has an inlet for the additive gas and an integrated inlet for gas for oxygenating the patient that are connected to a backup line to mix the additive gas and gas for oxygenating the patient to a set concentration of additive gas in the gas mixture at an integrated backup outlet of the additive gas delivery apparatus.

An elbow configured to connect to a positive pressure ventilation mask and to a ventilator circuit that provides a source of pressurized air. The elbow includes an access valve that opens to provide access to the mouth of the patient without removing the mask and seals from ventilator pressure pushing the valve to the closed position.

An airway adaptor providing a measurement chamber for gas measurement by a mainstream gas analyzer includes a body having a first end and a second end and configured to connect in a ventilation circuit carrying ventilation gas to and from a patient. The body forms a primary path that includes the measurement chamber and is configured to allow ventilation gas to pass between the first end and the second end and at least one secondary path separated from the primary path and located on an outer perimeter of the primary path. The at least one secondary path is configured to contain liquid away from the measurement chamber.

A diagnostic device is disclosed for characterisation of particles from a patient’s airways, such as a lung, when ventilated by a ventilator, and/or for control thereof, comprising a particle detecting unit configured to be connected to a conduit for passing expiration fluid from said patient, for obtaining data related to particles being exhaled from said patent’s airways.

The present invention generally relates to systems and method for delivery of therapeutic gas to patients in need thereof using enhanced breathing circuit gas (BCG) flow measurement. At least some of these enhanced BCG flow measurements can be used to address some surprising phenomena that may, at times, occur when wild stream blending therapeutic gas into breathing gas that a patient receives from a breathing circuit affiliated with a ventilator. Utilizing at least some of these enhanced BCG flow measurements the dose of therapeutic gas wild stream blended into breathing gas that the patient receives from a ventilator can at least be more accurate and/or over delivery of therapeutic gas into the breathing gas can be avoided and/or reduced.

An apparatus including a tubular channel having a pathway extending between a proximal end and a distal end of the tubular channel. The proximal end is configured to connect directly or indirectly to an end tidal CO.sub.2 monitor. The distal end has an opening. The apparatus further includes a detection member including a chamber disposed in fluid communication with the pathway of the tubular channel such that gas entering the tubular channel via the opening on the distal end passes into the chamber. A detection element is disposed within the chamber and includes a component that is sensitive to one or more systemic biomarkers such that, upon exposure to a predetermined concentration level of the one or more systemic biomarkers contained in the gas, a state of the detection element experiences a permanent alteration and the detection member indicates that the predetermined concentration level of the one or more systemic biomarkers is present in the gas.

A mount provides a structure that facilitates coupling of a nebuliser downstream of a humidifier chamber and upstream of a conduit that delivers conditioned breathing gases to a patient or user. The mount can couple together a chamber, a nebulizer and a conduit.

Disclosed is a method for selectively capturing one or more portions of a patient's breath, comprising: detect one or more parameters regarding the patient's breath during a breathing routine; determine one or more data points from the detected one or more parameters wherein the one or more data points identifies one or more portions of the patient's breath to capture; and capture one or more portions of the patient's breath during the breathing routine.

A mask configured to assist the respiration of a patient with a gas inlet port positioned to connect a gas supply to the mask and direct gas flow towards a patient's skin; a scattering chamber with an inlet port and a plurality of outlet ports, the scattering chamber inlet port fluidly connected to the gas inlet port, and the plurality of outlet ports positioned to scatter the gas flow away from the patient's skin and towards the interior surface of the mask and a region between the patient's skin and the interior surface of the mask; and an outgas collector assembly connected adjacent the scattering chamber and positioned to collect an outgas emission expelled from the patient and eject the outgas emission from the mask.

A respiratory mask for a medical patient including a shell and a flow coupling is disclosed. The shell includes an upper portion configured to cover a nose of the patient and a lower portion configured to cover a mouth of the patient, where an internal surface of the shell defines an interior volume of the respiratory mask. The flow coupling includes a body, a supply flow passage extending through the flow coupling, a scavenging flow passage extending through the flow coupling, and a septum within the body that separates the supply flow passage from the scavenging flow passage. The supply flow passage and the scavenging flow passage are fluidly coupled to an aperture that extends through the upper portion of the shell, and an aperture extending through the lower portion of the shell, respectively.