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US 11,108,317 B2Granted
Breathing assistance device with linear actuated gas regulating valve
AssigneeResMed Paris SAS
InventorsPhilippe Auguste Chalvignac, Nan Hai Wu, Kenneth Taylor, Daniel Robert Judson, Paul Jan Klasek, Christopher Kingsley Blunsden
Life of this patent
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Abstract
A breathing assistance device includes a gas regulating valve (1300). The gas regulating valve is operated by a linear actuator (1330). The linear actuator may include a movable member that moves an obstruction member between an open position and a closed position. The linear actuator is isolated from a gas flow path through the valve.
Claims19
A variable vented respiratory mask comprising:
- a flow regulator including:
- a linear actuator including:
- a housing;
- a yoke mounted inside the housing;
- a coil assembly inserted within the yoke;
- a magnetic element inserted within the coil assembly;
- a circuit assembly coupled to an outer surface of the yoke;
- and
- a central aperture adapted to receive a gas flow path therethrough;
- wherein the coil assembly includes a bobbin having a wire coil wound thereon and at least one wire alignment guide adapted to facilitate attachment of ends of the wire coil to the circuit assembly through apertures provided in the yoke;
- and
- wherein the coil assembly is adapted to move in a linear direction within the yoke in response to electro-magnetic forces applied by the magnetic element.
9 more elements
A variable vented respiratory mask comprising:
- a flow regulator for regulating flow rate out of the mask, including
- a flow passage that includes an aperture, the aperture permitting gas to exit the mask;
- a movable obstruction, the obstruction configured to vary a size of the aperture;
- and
- a flow regulator controller configured to provide electrical signal to the flow regulator to effect movement of the obstruction,
- wherein varying the size of the aperture selectively varies a flow rate out of the mask.
3 more elements
A variable vented respiratory mask, comprising
- a mask shell;
- a gas supply hose;
- a flow regulator;
- a controller connected to the flow regulator with an electrical cable;
- the flow regulator including a flow regulator actuator that is configured to move an obstruction into and out of engagement with an aperture of the mask to vary a size of the aperture to allow gas to exit the mask;
- a flow valve located in the gas supply hose;
- the flow valve connected to the controller;
- the flow valve including a flow valve actuator;
- and
- wherein the controller is configured to selectively actuate the flow regulator actuator and the flow valve actuator.
7 more elements
Dependencies are inferred from the claim text.