The present invention relates generally to cannula that interconnects an oxygen supply to a pair of hoses and two outlets or nasal tips, each tip having a polished opening for delivering oxygen into the nasal passage; the hose member from the supply received by the cannula via a connector to branch two oxygen carrying tubes, threading through a clasp encircling the hoses beneath the chin to stabilize the cannula and position them up or down; the hoses branching to opposing sides of the chin, behind each ear, meeting at a second clasp at the midpoint of the forehead above the bridge of a nose, wherein each tube courses along opposite sides of the nose downwardly into a bend element (i.e., a moldable and/or malleable turn) terminating into an outlet at the Ala's edge coming to rest inside respective nasal passage.

An apparatus for providing a pressurised flow of breathable gas to the airways of a patient includes a pivotable outlet port structured and arranged to connect to an air delivery tube configured to pass the pressurised flow of breathable gas to a patient interface. The pivotable outlet port is able to pivot about at least one axis.

Embodiments provide an oxygen supply device having multiple operational states including a first state and a second state. In the first state, the oxygen supply device is controllable to a local control instruction such that the oxygen supply device can be operated by a user physically located within a proximity of the oxygen supply device. In the second state, the oxygen supply device is only controllable to a remote-control instruction such that the oxygen supply device can be operated by a user remote to the oxygen supply device. For example, the user can be located in an office remote to a location of the oxygen supply device, which, for example, may be placed at a patient's home. In the second state, the user is enabled to control the oxygen supply device from a device associated with the user in the remote location.

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 portable medical ventilator using pulse flow from an oxygen concentrator to gain higher oxygen concentration includes a positive pressure source to deliver pressurized air to the patient and a negative pressure source to trigger the oxygen concentrator. A patient circuit attached to a patient interface mask connects the ventilator to the patient. The ventilator includes a controller module that is configured to generate a signal to the negative pressure device to trigger the concentrator to initiate one or more pulses of oxygen from the oxygen concentrator. The oxygen pulses are delivered to the patient interface directly through multi-tube or a multi lumen patient circuit. The oxygen does not mix with air in the ventilator or in the patient circuit and bypasses the leaks in the patient circuit and/or patient interface.

A user-replaceable receptacle for an oxygen concentrator includes a containment structure and a desiccant disposed within the containment structure. An inlet end of the containment structure allows feed gas to be introduced into the desiccant. An outlet end of the containment structure allows the feed gas to exit the containment structure. A connection mechanism couples the outlet end of the containment structure to a gas separation adsorbent. The connection mechanism is operable between an unconnected position and a connection position. The desiccant in the user-replaceable receptacle removes water moisture from the feed gas prior to exiting the outlet end of the containment structure, thereby reducing exposure of the gas separation adsorbent to water.

A ventilation system that includes a pressure source, a pneumatic path configured to receive gas from the pressure source and comprising a first pneumatic component coupled to a second pneumatic component. The first pneumatic component includes a first electrical conductor including a first electrical component having a first electrical characteristic. The second pneumatic component comprises a second electrical conductor including a second electrical component having a second electrical characteristic. The first electrical conductor is electrically connected with the second electrical conductor in an electric path. The system performs operations including determining a continuity of the electrical path; displaying a notification regarding the continuity of the electrical path; detecting the unique electrical characteristic of the electric path; and determining a pneumatic characteristic of the pneumatic path.

A respiratory conduit has a hollow tube having an inlet, an outlet, a longitudinal axis, and defining a fluid flow path. Along at least a length of the tube, an outer surface of the tube has alternate ridges and grooves. The respiratory conduit also has a sheath surrounding at least a portion of the length of the tube, the sheath has alternate attachment portions and bridging portions. The attachment portions contact the ridges of the tube. The bridging portions extend across the grooves of the tube. Each bridging portion has a span length being the distance in the longitudinal direction between adjacent attachment portions, and a depth being the maximum distance in a radial direction between a point on the bridging portion and a point on one of the adjoining attachment portions. The depth of the bridging portion is greater than zero.

Disclosed herein are novel designs of a medical tube for delivering a respiratory gas to a subject in respiratory therapy, wherein the medical tube is in fluid connection with a user interface and a respiratory device. The medical tube has a tubular body, a first rib helically extending along the outer surface of the tubular body, and optionally, a second rib disposed next to the first rib, and optionally, a membrane encapsulating the first and/or second ribs thereby creating a helical space along the outer surface of the tubular body. In some embodiments, the first rib has a lumen and at least one wire disposed outside the lumen. In other embodiments, the first rib is free of any lumen and includes one or more wires extended therethrough. The lumen of the first rib or the helical space created by membrane encapsulation is configured to monitor the temperature, humidity, flow rate or pressure of the respiratory gas or an exhaled/inhaled gas of a subject.

A method and apparatus deliver a variable flow of oxygen to a patient. The apparatus may include a flow control valve, a pressure sensor to detect a patient's breathing pressure and ambient pressure, an oxygen flow analyzer to measure oxygen flow to the patient, and a processor to analyze the breathing pressure values, ambient pressure value, and oxygen flow rate values and to determine when a patient is inhaling. When the processor determines the patient is inhaling, the processor calculates an optimal oxygen flow rate to deliver to a patient, which may depend on a pre-selected flow rate and an oxygen backlog, and the processor sends a signal to the flow control valve to deliver the optimal oxygen flow rate to the patient.