Abstract:
A network enabled flow generator includes a continuous source of breathable gas for delivery to airways of a patient, and a process controller processing data relating to operations of the flow generator. A network interface communicates with the process controller and is configured to support a communications protocol. In this manner, patient data can be more easily accessed, and the flow generator can be more easily maintained via access through a network such as the Internet.
Abstract:
A controller or processor for a respiratory pressure treatment device determines an estimate of patient respiratory flow based on a measure of pressure associated with flow generated by a flow generator and a measure of frequency of the flow generator, such as a rotational velocity of a servo-controlled blower motor. The estimate can be made without data from a flow sensor. The measure of frequency may be converted to an expected pressure based on characteristics of the flow generator and subtracted from the measured pressure to determine the flow estimate. The flow estimate can be implemented in the provision of respiratory pressure treatment with the flow generator. For example, the flow estimate may be utilized to trigger expiratory pressure relief during a patient's expiration as detected with the estimated flow signal.
Abstract:
An air delivery system includes an air flow generator to provide a pressurized flow of air, a patient interface to provide a seal with the patient's face in use, an air delivery conduit to interconnect the air flow generator and the patient interface, and a controllable vent valve to control venting from the patient interface. The vent valve is controlled to maintain a substantially constant air flow in the air delivery conduit and the air flow generator.
Abstract:
A new and distinct Echeveria cultivar named ‘ECRPI01-0’ is disclosed, characterized by a tight rosulate plant form, unique leaf margins that are undulating, crenulate and bright pink. The new variety is an Echeveria, normally produced as an ornamental garden or container plant.
Abstract:
Components of a CPAP or other patient ventilation apparatus have a remotely-readable identification tag encoded with component identification data. The flow generator controller is programmed to receive data derived from the identification tag from a tag reader, and to adapt functions of the flow controller to coordinate with the component.
Abstract:
A new and distinct Echeveria cultivar named ‘ECRRE02-0’ is disclosed, characterized by tight rosulate plant form, unique heavily crenulated leaf margins. Foliage is colored greyed-green with red margins and greyed-red margin flushing. The new variety is an Echeveria, normally produced as an ornamental garden or container plant.
Abstract:
A new and distinct Echeveria cultivar named ‘ECRAQ03-0’ is disclosed, characterized by a non-branching rosulate plant form, long pink scape, unique leaf margin coloration and tight leaf edge undulations. Additionally, leaf color varies with temperature. The new variety is an Echeveria, normally produced as an ornamental garden or container plant.
Abstract:
A method and CPAP apparatus characterizes different mask systems, e.g., masks and hoses. The CPAP apparatus can be calibrated for different mask systems and hoses by including sensors that measure flow and pressure at a flow generator of the apparatus. When the generator is fitted to a new mask system, or any changes are made to an existing one, a method calibrates the generator for the mask system. The method includes determining air flow characteristics using flow measurements from a first test period when flow through the mask system is open, measuring or estimating pressure in the mask system during a second test period when flow through the mask system is blocked and determining air flow characteristics of the diffuser of the mask system using the air flow characteristics of the air delivery hose determined during the first period and the pressure measurements made during the second period.
Abstract:
A CPAP system includes a flow generator (10), a patient interface (50), an air delivery conduit (20) that interconnects the flow generator and the patient interface, wherein the air delivery conduit has an internal diameter of less than 19 mm. Preferably the air delivery conduit has an internal diameter of between about 10 mm and about 18 mm The CPAP system may also include a controller for compensating for pressure swings and/or increased impedance within the system. Preferably the blower includes a low inertia blower.
Abstract:
An air delivery system includes an air flow generator to provide a pressurized flow of air, a patient interface to provide a seal with the patient's face in use, an air delivery conduit to interconnect the air flow generator and the patient interface, and a controllable vent valve to control venting from the patient interface. The vent valve is controlled to maintain a substantially constant air flow in the air delivery conduit and the air flow generator.