Pharmaceutical Metered Dose Inhaler and Methods Relating Thereto
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United States of America Patent
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Issued Date -
Jun 2, 2016
app pub date -
Feb 5, 2016
filing date -
Feb 5, 2016
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Abstract
Metering valves for use in a metered dose inhaler that include a valve body, a first stem seal including a first elastomeric material, a second stem seal including a second elastomeric material different from the first elastomeric material, and a valve stem slidably engaged with at least one of the first stem seal and the second stem seal as well as sealed containers configured to contain an aerosol pharmaceutical formulation that include a container having an opening therein, a cap covering the opening in the container, a metering valve adjacent the cap, and a cap seal positioned between the cap and the container to provide a sealed container where the metering valve include at least one stem seal that includes a first elastomeric material, and the cap seal includes a second elastomeric material different from the first elastomeric material are described.
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