APPARATUS FOR DELIVERY OF PRESSURISED GAS
First Claim
1. An apparatus for delivering breathable gas to a subject, comprising:
- a blower for delivering pressurised gas;
a water reservoir for humidifying the gas;
a heater;
a casing for housing the blower and the water reservoir;
a gas inlet and a gas outlet engaging a single port in the water reservoir; and
a conduit for directing gas from the outlet to a subject.
1 Assignment
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Accused Products
Abstract
The present invention provides a gas delivery device and system and methods for delivering humidified pressurised gas through a conduit to a subject. The configuration of the elements of the gas delivery device enable the device to be conveniently oriented from a horizontal to vertical position to suit the needs of a user. The gas delivery device may incorporate a Helmholtz resonator for dampening sound of the motor. The conduit may incorporate concentric tubes to allow it to conveniently engage the humidifier at a single aperture. The invention includes a method of operating a blower motor for a gas delivery device using a single Hall sensor.
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Citations
35 Claims
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1. An apparatus for delivering breathable gas to a subject, comprising:
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a blower for delivering pressurised gas; a water reservoir for humidifying the gas; a heater; a casing for housing the blower and the water reservoir; a gas inlet and a gas outlet engaging a single port in the water reservoir; and a conduit for directing gas from the outlet to a subject. - View Dependent Claims (5, 6, 7, 22, 23, 24)
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2. An apparatus for delivering breathable gas to a subject, comprising:
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a blower for delivering pressurised gas, the blower disposed in a sound housing; a casing for housing the blower and a water reservoir; a heater for heating water in the water reservoir; a gas inlet and a gas outlet; a gas filter housed in a removable transparent casing; and a conduit for directing gas from the outlet to a subject. - View Dependent Claims (25, 26, 27, 28, 29)
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3. An apparatus for delivering breathable gas to a subject, comprising:
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a blower for delivering pressurised gas; a casing for housing the blower; a gas inlet and a gas outlet, a conduit for directing gas from the outlet to a subject, and at least one plenum chamber and at least one resonating means adjacent the blower. - View Dependent Claims (4, 30, 31, 32, 33, 34, 35)
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8. An apparatus for delivering breathable gas to a subject comprising:
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a blower for delivering pressurised gas; a water reservoir for humidifying the gas; a heater; a casing for housing the blower and the water reservoir; a gas inlet and a gas outlet; and a conduit for directing gas from the outlet to a subject wherein the apparatus is disposable in operation at any suitable angle from substantially horizontal to substantially upright orientations without spillage of fluid from the water reservoir. - View Dependent Claims (9, 10, 11, 13, 14)
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12. (canceled)
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15. An apparatus for delivering breathable gas to a subject comprising:
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a blower having an outlet for delivering pressurised gas, the blower comprising of a motor chamber, two outlet airways and a valve chamber, the blower including means to rapidly change gas pressure or flow rate; a casing for housing the blower and the water reservoir; a gas inlet and a gas outlet; a gas filter housed in a removable transparent casing; and a conduit for directing gas from the outlet to a subject. - View Dependent Claims (16, 17)
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18. A method for controlling a motor of a blower in a gas delivery device, the method including the steps of:
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determining the rotational position of an impeller; determining the velocity of an impeller; and adjusting the timing of winding excitations for controlling the speed of the impeller.
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19. A method for delivering breathable gas to a subject, the method including the steps of:
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pressurising ambient gas with an impeller, humidifying the ambient gas; and directing the humidified gas to the airway of a subject; wherein the pressurising step includes detecting the position of the impeller with a single sensor means. - View Dependent Claims (20)
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21. (canceled)
Specification