Aerosol metering valve
First Claim
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1. A metering valve comprising:
- a valve body defining a metering chamber having an inlet and an outlet;
an inlet valve adapted to be reversibly actuable from an open to a closed position located at the inlet;
an outlet valve adapted to be reversibly actuable from a dispensing to a non-dispensing position located at the outlet, wherein said outlet valve includes an outlet valve seat adapted to be in biasable contact with an outlet valve poppet; and
a magnetic actuating mechanism which is actuable to move the outlet valve poppet out of contact with the outlet valve seat.
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Abstract
A metering valve that includes a valve body defining a metering chamber having an inlet valve adapted to be reversibly actuable from an open position to a closed position located at the inlet, and an outlet valve adapted to be reversibly actuable from a dispensing to a non-dispensing position located at the outlet, where the outlet valve includes an outlet valve seat adapted to be in biasable contact with an outlet valve poppet is described. Aerosol containers and inhalation devices that include such metering valves are also described, as are methods of using such inhalation devices.
196 Citations
67 Claims
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1. A metering valve comprising:
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a valve body defining a metering chamber having an inlet and an outlet;
an inlet valve adapted to be reversibly actuable from an open to a closed position located at the inlet;
an outlet valve adapted to be reversibly actuable from a dispensing to a non-dispensing position located at the outlet, wherein said outlet valve includes an outlet valve seat adapted to be in biasable contact with an outlet valve poppet; and
a magnetic actuating mechanism which is actuable to move the outlet valve poppet out of contact with the outlet valve seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. An inhalation device for dispensing medicament to a patient comprising:
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a housing;
an aerosol container, locatable within said housing, said aerosol container comprising a metering valve that comprises a valve body defining a metering chamber having an inlet and an outlet;
an inlet valve adapted to be reversibly actuable from an open to a closed position located at the inlet;
an outlet valve adapted to be reversibly actuable from a dispensing to a non-dispensing position located at the outlet, wherein said outlet valve includes an outlet valve seat adapted to be in biasable contact with an outlet valve poppet; and
a magnetic actuating mechanism which is actuable to move the outlet valve poppet out of contact with the outlet valve seat; and
an outlet valve trigger for triggering the movement of the outlet valve poppet out of contact with the outlet valve seat. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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Specification