DELIVERY DEVICE AND RELATED METHODS
First Claim
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1. A dose delivery device, comprising:
- a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet;
a first chamber having an inlet and an outlet, fluid entering the first chamber via the first chamber inlet being arranged in an inlet direction, the first chamber, the first chamber inlet and the first chamber outlet being arranged such that fluid flowing in an outlet direction to the first chamber outlet is transverse to, and crosses, fluid flowing in the inlet direction;
a second chamber having an inlet arranged to receive dose entrained air from the first chamber outlet, and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet, the second chamber arranged to disperse dose in the dose entrained air provided to the housing inlet;
bypass inlet to inlet air into the second chamber in a generally radially inward direction; and
a dose chamber arranged to hold a dose.
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Abstract
A dose delivery device with a mouthpiece having an inlet, an outlet, and an air path extending between the inlet and the outlet. A dose chamber having an opening may hold a dose, e.g., for inhalation by a user. One or more bypass inlets, two or more dispersion chambers, and/or flow arrangements in which incoming and outgoing flow in a dispersion chamber are transverse may be used to disperse a dose for delivery to a user.
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Citations
23 Claims
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1. A dose delivery device, comprising:
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a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet; a first chamber having an inlet and an outlet, fluid entering the first chamber via the first chamber inlet being arranged in an inlet direction, the first chamber, the first chamber inlet and the first chamber outlet being arranged such that fluid flowing in an outlet direction to the first chamber outlet is transverse to, and crosses, fluid flowing in the inlet direction; a second chamber having an inlet arranged to receive dose entrained air from the first chamber outlet, and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet, the second chamber arranged to disperse dose in the dose entrained air provided to the housing inlet; bypass inlet to inlet air into the second chamber in a generally radially inward direction; and a dose chamber arranged to hold a dose. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dose delivery device, comprising:
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a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet; a first chamber arranged provide a dose at a first chamber outlet; a second chamber having a cylindrical shape, an inlet arranged to receive dose from the first chamber outlet, and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet, fluid entering the second chamber via the second chamber inlet being arranged in a direction along a longitudinal axis of the cylindrical shape and located near a periphery of the cylindrical shape; and one or more bypass inlets arranged to provide air into the second chamber, the bypass inlets being separate from the second chamber inlet. - View Dependent Claims (9)
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10. A dose delivery device, comprising:
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a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet; a first chamber arranged provide a dose at a first chamber outlet; and a second chamber having an inlet arranged to receive dose from the first chamber outlet, and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet, the second chamber including a concave depression opposite the housing inlet that includes at least one opening to direct bypass air into the second chamber and toward the housing inlet.
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11. A dose delivery device, comprising:
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a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet; a first chamber arranged to provide a dose in a fluid flow at a first chamber outlet; a second chamber having an inlet arranged to receive dose from the first chamber outlet, and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet; a first bypass inlet arranged to admit air into the second chamber near the second chamber inlet such that fluid flow from the first chamber outlet into the second chamber inlet is transverse to and intersects with air admitted by the first bypass inlet; and a second bypass inlet arranged to admit air into the second chamber near the second chamber outlet such that fluid flow from the second chamber outlet into the housing inlet is transverse to and intersects with air admitted by the second bypass inlet. - View Dependent Claims (12)
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13. A dose delivery device, comprising:
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a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet; a first chamber having a toroidal shape arranged to disperse a dose in a fluid flow in the first chamber, an inlet, and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet, the first chamber inlet being arranged radially inwardly of the first chamber outlet and near top surface of the toroidal shape which is located nearer the housing inlet than a bottom surface of the toroidal shape. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A dose delivery device, comprising:
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a housing having an inlet at a first end, an outlet at a second end, and an air path extending between the inlet and the outlet; and a first chamber having an inlet and an outlet fluidly coupled to the housing to provide dose entrained air to the housing inlet, fluid entering the first chamber via the first chamber inlet being arranged in a generally radially outward direction, the first chamber, the first chamber inlet and the first chamber outlet being arranged such that fluid entering via the first chamber inlet is caused to flow radially outwardly toward an outer periphery of the first chamber, along the outer periphery of the first chamber away from the first chamber outlet, and radially inwardly toward the first chamber outlet. - View Dependent Claims (22, 23)
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Specification