The present invention is an apparatus that gives patency to the respiratory tract to reduce suffocating feeling by maintaining a pressure higher than atmospheric pressure in the nasopharynx during exhalation; an apparatus that is equipped with an air flow part communicating with a nasal mask covering user's nostrils or with user's nostrils and a casing forming a chamber for temporarily holding the exhaled air of the user; and provides a breathing apparatus that is equipped with a first opening provided in the casing for discharging the exhaled air temporarily held in the casing to the outside and an exhalation control valve that releases exhaled air to the first opening side at the start of exhalation of the user and closes the first opening when the pressure in the chamber on the nostril side exceeds a predetermined value due to exhalation.

The invention relates to a respiratory therapy device (1) for treating the musculature of respiratory tracts, lung functions and/or mucous deposits in the lungs, nose and/or throat of a patient (2), consisting of a hollow body (3) in which at least one through-channel (4, 5) is provided, a mouthpiece or nosepiece (6) which is inserted into the hollow body (3) and which is connected to the patient (2) during the duration of the treatment by the respiratory therapy device (1), and consisting of at least one vibration body (11, 12) which is arranged in the interior of the hollow body (3) and which is caused to vibrate in an oscillating manner by the inhalation and/ or exhalation of the patient (2), wherein an oscillating, resistive and/or threshold-typical air pressure vibration occurs, the individual resistances during the inhalation and exhalation being adjustable specific to the patient and a modification or repositioning of the respiratory therapy device (1) not being required. This is solved in that a retaining body (13) is inserted into the hollow body (3), into which retaining body at least one opening (14) is integrated, in that a freely oscillating tongue (15) is fixed to the hollow body (13) in the region of the opening (14), by means of which tongue the opening (14) of the retaining body (13) is closed or opened in regions according to the air flows (7, 8) prevailing in the interior of the hollow body (3), in that the end face (9) of the hollow body (3) opposite the mouthpiece (6) is open, in that a stenosis (18) is inserted into said end face (9), into the shell surface (19) of which stenosis at least two passage openings (20) are provided through which the air flows (7, 8) flow into the interior of the hollow body (3) or vice versa, in that the passage openings (20) of the stenosis (18) have different cross-sectional areas than air passages for the air flows (7, 8) and that the stenosis (18) is rotatably mounted in the hollow body (3), such that one of the passage openings (20) can be selected or adjusted as an air passage by rotating the stenosis (18).

The present invention relates to a tracheal coupling comprising a patient port 33, an outlet port 36, an inlet port 31 between the patient port and the outlet port, such that flow 34 from the inlet port can go to the patient port or direct to the outlet port, and a flow restriction e.g. 32 between the inlet port and the outlet port, or at the outlet port.

A positive pressure airway device for providing resistance in an air pathway for a patient exhaling. The device includes a central tube region, a inspiratory air passageway for passing air into the central tube region when a patient breathing through the device inhales, and an expiratory air passageway for passing air out of the central tube region when a patient breathing through the device exhales, A valve in the expiratory air passageway allows air to flow out only when a patient using the device exhales with an expiratory air pressure greater than a selected pressure, and includes a stopper and a coil spring with an interior portion that is free from any structure that would inhibit the “side-to-side” movement of the spring within the housing. The stopper has a cone-shaped air-stopping surface providing a valve angle that is different from the valve-seat angle so that either laminar or oscillating flow may be obtained.

A headgear portion or assembly for use in combination with a breathing apparatus in some configurations is at least substantially inelastic and is three dimensional in shape. The headgear portion or assembly can comprise a plastic core and a textile casing. The headgear, or part thereof, may also have integrally moulded labels, connectors, adjustment mechanisms and/or grips.

A pressure indicator for a respiratory treatment device, the pressure indicator including an instrument for measuring pressures, a conduit configured to transmit a pressure within the respiratory treatment device to the instrument, and a pressure stabilizer orifice positioned within the conduit.

A CPAP system for respiratory therapy includes an RPT device configured to supply a flow of gas at a therapeutic pressure, a patient interface, an air delivery conduit configured to pass the flow of gas from the RPT device to the patient interface, and a vent assembly configured to provide a vent flow of gas to discharge gas exhaled by the patient from a pressurized volume to ambient. The vent assembly includes a base including at least one first orifice to allow gas to be discharged along a primary vent flow path and at least one second orifice to allow gas to be discharged along a secondary vent flow path, a diffusing member provided to the base, and a membrane provided to the base. The membrane is configured to apportion the vent flow of gas along the primary vent flow path and the secondary vent flow path throughout respiratory therapy.

The present invention relates to a tracheal coupling comprising a patient port 33, an outlet port 36, an inlet port 31 between the patient port and the outlet port, such that flow 34 from the inlet port can go to the patient port or direct to the outlet port, and a flow restriction e.g. 32 between the inlet port and the outlet port, or at the outlet port.

Embodiments disclosed herein are directed to ventilation devices, systems, and methods for applying positive end expiratory pressure (PEEP) to the lungs of a patient. For example, applying above atmospheric pressure to the lungs of the patient may mitigate alveolar collapse in the lungs and/or may have other health benefits for the patient.

A medical device measures a pressure of a pressurized breathing gas and includes a pressure sensor arranged at a point of measurement and measures the pressure of a sample gas at a sampling point. The sampling point and the point of measurement are connected by a pressure sampling tube in which a pressure wave of the sample gas can propagate from the sampling point to the point of measurement. The tube has a sampling tube volume and an acoustic impedance. The device further includes a damping arrangement fluidly communicating with the tube. The damping arrangement includes a flow restrictor and a receptor chamber arrangement. The receptor arrangement includes a receptor chamber which receives the pressure wave. The restrictor correlates to the acoustic impedance to prevent acoustic resonance in the tube. The receptor chamber correlates at least to the tube volume to prevent acoustic resonance in the tube.