Aerosol metering valve
AssigneeSmithKline Beecham Corporation
InventorsAnthony Patrick Jones, Gregor John McLennan Anderson, Paul Kenneth Rand
Life of this patent
Estimating the term…
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.
Claims67
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.
An inhalation device for dispensing medicament to a patient comprising:
- 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.
Dependencies are inferred from the claim text.