Respiratory therapy device and method
First Claim
1. A device for providing respiratory therapy to a patient during at least a portion of a patient breathing cycle including an inspiratory phase and an expiratory phase, the device comprising:
- a housing including a patient inlet, an exhaust outlet, a first chamber fluidly disposed between the patient inlet and the exhaust outlet, and a first pressurized fluid supply inlet; and
an interrupter valve assembly associated with the housing and including a control port fluidly connecting the patient inlet and the first chamber, and a valve body adapted to selectively obstruct fluid flow through the control port;
wherein the device is adapted to;
operate in a first, passive mode in which fluid flow to the first pressurized fluid supply inlet does not occur and the interrupter valve assembly interacts with exhaled air to create an oscillatory positive expiratory pressure effect during the expiratory phase via the body selectively obstructing fluid flow from the patient through the control port, andoperate in a second, active mode in which fluid flow to the pressurized fluid supply inlet occurs and the interrupter valve assembly interacts with the fluid flow to create a continuous high frequency oscillation effect via the valve body selectively obstructing fluid flow from the first pressurized fluid supply inlet through the control port.
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Accused Products
Abstract
A respiratory therapy device including a housing and an interrupter valve assembly. The housing includes a patient inlet, an exhaust outlet, a chamber, and a supply inlet. The interrupter valve assembly is associated with the housing and includes a control port fluidly connecting the patient inlet and the first chamber, and a valve body adapted to selectively obstruct fluid flow through the control port. In a passive mode, positive fluid flow to the supply inlet does not occur, and the interrupter valve assembly interacts with exhaled air create an oscillatory PEP effect. In an active mode, fluid flow to the supply inlet occurs and the interrupter valve assembly operates to create a CHFO effect. The respiratory device can serve as a passive oscillatory PEP device, and when connected to a positive pressure source, as an active device.
158 Citations
33 Claims
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1. A device for providing respiratory therapy to a patient during at least a portion of a patient breathing cycle including an inspiratory phase and an expiratory phase, the device comprising:
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a housing including a patient inlet, an exhaust outlet, a first chamber fluidly disposed between the patient inlet and the exhaust outlet, and a first pressurized fluid supply inlet; and an interrupter valve assembly associated with the housing and including a control port fluidly connecting the patient inlet and the first chamber, and a valve body adapted to selectively obstruct fluid flow through the control port; wherein the device is adapted to; operate in a first, passive mode in which fluid flow to the first pressurized fluid supply inlet does not occur and the interrupter valve assembly interacts with exhaled air to create an oscillatory positive expiratory pressure effect during the expiratory phase via the body selectively obstructing fluid flow from the patient through the control port, and operate in a second, active mode in which fluid flow to the pressurized fluid supply inlet occurs and the interrupter valve assembly interacts with the fluid flow to create a continuous high frequency oscillation effect via the valve body selectively obstructing fluid flow from the first pressurized fluid supply inlet through the control port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of providing respiratory therapy to a patient during at least a portion of a patient breathing cycle including an inspiratory phase and an expiratory phase, the method comprising:
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providing a respiratory therapy device including; a housing including a patient inlet, an exhaust outlet, and a pressurized fluid supply inlet, and an interrupter valve assembly for selectively interrupting fluid flow to or from the patient inlet; fluidly coupling source of pressurized fluid to the pressurized fluid supply inlet; administering continuous high frequency oscillation therapy to the patient via the therapy device while in an active mode of operation; discontinuing fluid flow from the source of pressurized fluid to the pressurized fluid supply inlet; prompting the patient to repeatedly perform a patient breathing cycle; and administering oscillatory positive expiratory pressure therapy to the patient via the device while in a passive mode of operation. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification