Abstract: An embodiment provides a system having a non-invasive ventilation patient interface. In one example, the system includes a headgear element and a non-invasive ventilation patient interface detachably coupled to the headgear element. The non-invasive ventilation patient interface includes a conduit having an entrainment opening and a nasal opening disposed along a conduit axis. A pressure sensing element is provided proximate to the nasal opening. One or more orifices proximate to the entrainment opening are configured to expel a jet of gas. One or more surfaces have a first end and a second end, with the first end being proximate to the one or more orifices and directing a flow of the jet of gas expelled from the one or more orifices, the second end being closer to the nasal opening than the first end.

Abstract: An embodiment provides a non-invasive ventilation patient interface. In one example, the patient interface includes a conduit having an entrainment opening and a nasal opening. The patient interface includes an orifice proximate to the entrainment opening and configured to expel a jet of gas and a surface having a first end and a second end, the first end being proximate to the orifice and extending substantially parallel to a flow direction of the jet of gas expelled from the orifice, the second end being closer to the nasal opening than the first end. In an operational state, the jet of gas adheres to the surface via Coanda effect, thereby entraining ambient air into the entrainment opening to deliver the jet of gas and the ambient air through the nasal opening of the conduit.

Abstract: An embodiment provides a non-invasive ventilation patient interface. In one example, the patient interface includes a conduit having an entrainment opening and a nasal opening. The patient interface includes an orifice proximate to the entrainment opening and configured to expel a jet of gas and a surface having a first end and a second end, the first end being proximate to the orifice and extending substantially parallel to a flow direction of the jet of gas expelled from the orifice, the second end being closer to the nasal opening than the first end. In an operational state, the jet of gas adheres to the surface via Coanda effect, thereby entraining ambient air into the entrainment opening to deliver the jet of gas and the ambient air through the nasal opening of the conduit.

Abstract: An embodiment provides a system having a non-invasive ventilation patient interface. In one example, the system includes a headgear element and a non-invasive ventilation patient interface detachably coupled to the headgear element. The non-invasive ventilation patient interface includes a conduit having an entrainment opening and a nasal opening disposed along a conduit axis. A pressure sensing element is provided proximate to the nasal opening. One or more orifices proximate to the entrainment opening are configured to expel a jet of gas. One or more surfaces have a first end and a second end, with the first end being proximate to the one or more orifices and directing a flow of the jet of gas expelled from the one or more orifices, the second end being closer to the nasal opening than the first end.

Abstract: A ventilation device for providing a gas mixture for a user including a compressor to output compressed air; a valve to receive the compressed air and medical gas and selectively output a gas flow of at least one of the medical gas and the compressed air; a patient interface configured to provide the output gas flow of the valve; and a controller to control the valve to deliver substantially only the medical gas to the patient interface during a first portion of the inspiratory period and deliver substantially only the compressed air to the patient interface during a second portion of the inspiratory period.

Abstract: Provided is a system for adsorbing a gaseous component comprising nitrogen from a pressurized flow of air containing the gaseous component. The system comprises a first adsorption bed, and a second adsorption bed. Each of the adsorption beds are suitable for selectively adsorbing the gaseous component from the flow of air to produce a product gas having a higher oxygen concentration than that of the air. The system includes an adjustable feed gas supply which alternately supplies the first adsorption bed and the second adsorption bed with the air. The first adsorption bed is supplied with air during a first half cycle of operation of the system, and the second adsorption bed is then supplied with air during a second half cycle of operation of the system. The feed gas supply enables adjustment of at least one parameter relating to the amount or respective amounts of air being supplied to the first adsorption bed in the first half cycle and/or to the second adsorption bed in the second half cycle.

Abstract: Provided is a system for adsorbing a gaseous component comprising nitrogen from a pressurized flow of air containing the gaseous component. The system comprises a first adsorption bed, and a second adsorption bed. Each of the adsorption beds are suitable for selectively adsorbing the gaseous component from the flow of air to produce a product gas having a higher oxygen concentration than that of the air. The system includes an adjustable feed gas supply which alternately supplies the first adsorption bed and the second adsorption bed with the air. The first adsorption bed is supplied with air during a first half cycle of operation of the system, and the second adsorption bed is then supplied with air during a second half cycle of operation of the system. The feed gas supply enables adjustment of at least one parameter relating to the amount or respective amounts of air being supplied to the first adsorption bed in the first half cycle and/or to the second adsorption bed in the second half cycle.

Abstract: A system for pumping and/or compressing fluids is provided. The system comprises a base, a motor, a cam configured to be rotated about an axis of rotation by the motor, and one or more cylinder piston arrangements. Each cylinder piston arrangement comprises a first member and a second member. The first member has a longitudinal axis and two ends. The first member is fixedly attached to the base. The second member is configured to be operatively coupled to the cam and to be movable along the longitudinal axis with respect to the first member and through at least of the two ends. The axis of rotation of the cam is parallel to the longitudinal axis about which the second member moves relative to the first member.