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US 7,219,664 B2Granted
Breath actuated inhaler
AssigneeKos Life Sciences, Inc.
InventorsTom Ruckdeschel, Perry Genova, Dan Deaton, Matt Khare
Life of this patent
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Abstract
A breath actuated metered dose inhaler including a housing, a mouthpiece positioned at one end of the housing, and a mechanical release mechanism positioned at another end of the housing. The release mechanism is triggered by a diaphragm and the inhaler is configured such that the air inhalation pathway is unimpeded by the release mechanism.
Claims16
A breath actuated metered dose inhaler, comprising:
- a housing;
- a mouthpiece positioned at one end of the housing;
- a mechanical release mechanism positioned at another end of the housing, wherein said release mechanism comprises a spring that is compressed to store energy for the purpose of providing the metered dose;
- and wherein said release mechanism further comprises a rocker, wherein the spring is nested within a spring cup that engages an outer surface of the rocker, said rocker which is operable to pivot to allow compression and decompression of the spring;
- whereby the release mechanism is triggered by a diaphragm and the air inhalation pathway is unimpeded by the release mechanism.
2 more elements
A breath actuated metered dose inhaler comprising:
- a housing:
- a mouthpiece positioned at one end of the housing;
- and
- a mechanical release mechanism positioned at another end of the housing, whereby the release mechanism is triggered by a diaphragm and the air inhalation pathway is unimpeded by the release mechanism;
- and
- wherein said release machanism comprises a spring that is compressed to store energy for the purpose of providing the metered dose;
- and wherein said release mechanism further comprises a rocker, wherein the spring is nested within a spring cup that engages an outer surface of the rocker, said rocker which is operable to pivot to allow compression and decompression of the spring;
- and
- a vortex nozzle positioned within the mouthpiece, wherein said nozzle comprises a nozzle housing including an inlet which opens into a swirl chamber having an outer circumference, a diameter and a first swirl chamber end having a diameter, the inlet being tangential to the outer circumference and set at an angle to the first swirl chamber end, an exit passage positioned at a second swirl chamber end having a diameter, the diameter of the first swirl chamber end having a diameter greater than the diameter of the second swirl chamber end, the exit passage communicating with a nozzle face through which an aerosol is discharged.
6 more elements
Dependencies are inferred from the claim text.