VENTILATOR RESPIRATORY VARIABLE-SIZED GAS ACCUMULATOR
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Accused Products
Abstract
This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure further describes a novel approach for a fast delivery of a change in gas mixture to a patient by utilizing a variable-sized accumulator.
25 Citations
40 Claims
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1-20. -20. (canceled)
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21. A medical ventilator system, comprising:
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a processor; a plurality of sources of different gases controlled by the processor; a gas manifold connected to an outlet to a patient circuit via a flow path, the gas manifold receiving gas from the plurality of gas sources forming a gas mixture; an accumulator with a plurality of chambers, the accumulator is adapted to receive the gas mixture from the gas manifold; at least one purge valve in at least one chamber of the accumulator other than a first chamber controlled by the processor, the at least one purge valve is adapted to control a release of the gas mixture from the at least one chamber other than the first chamber of the accumulator to an environment external to the patient circuit; and at least one valve controlled by the processor, the at least one valve is adapted to change a volume of the accumulator by controlling at least one chamber flow path between the plurality of chambers of the accumulator. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A pressure support system comprising:
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a processor; a pressure generating system adapted to generate a flow of breathing gas controlled by the processor; a ventilation system including a patient circuit controlled by the processor; a plurality of sources of different gases controlled by the processor; a gas manifold connected to an outlet to a patient circuit via a flow path, the gas manifold receiving gas from the plurality of gas sources forming a gas mixture; an accumulator with a plurality of chambers, the accumulator is adapted to receive the gas mixture from the gas manifold; at least one purge valve in at least one chamber of the accumulator, other than a first chamber, controlled by the processor, the at least one purge valve is adapted to control a release of the gas mixture from the at least one chamber, other than the first chamber, of the accumulator to an environment external to the patient circuit; and at least one valve controlled by the processor, the at least one valve is adapted to change a volume of the accumulator by controlling at least one chamber flow path between the plurality of chambers of the accumulator. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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Specification