Aerosol medication inhalation system
First Claim
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1. A medication delivery apparatus comprising:
- an antistatic holding chamber that has an input end and an output end spaced apart along a longitudinal axis;
a patient interface component connected to said output end and comprising an interior surface defining a flow passage; and
a duck-bill shaped valve disposed adjacent said output end, said duck-bill shaped valve comprising a flexible material and moveable between an open position and a closed position, wherein said duck-bill shaped valve has a central opening when in said open position, said central opening having a flow path along said longitudinal axis, so as to facilitate a flow from the antistatic holding chamber to a patient,wherein the duck-bill shaped valve is configured to block a flow of exhaled air upstream in the direction of the antistatic holding chamber, and the duck-bill shaped valve configured to permit the exhaled air to be exhausted through a sidewall of a housing.
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Abstract
An apparatus for use in conjunction with a metered dose inhaler which includes a novel valve system to aid in the delivery of aerosolized medicament to a subject. The apparatus also includes a novel rotational flow generator to aid in the useable delivery of said medication and avoid its loss either in the apparatus or by non-useful delivery to said subject.
288 Citations
23 Claims
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1. A medication delivery apparatus comprising:
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an antistatic holding chamber that has an input end and an output end spaced apart along a longitudinal axis; a patient interface component connected to said output end and comprising an interior surface defining a flow passage; and a duck-bill shaped valve disposed adjacent said output end, said duck-bill shaped valve comprising a flexible material and moveable between an open position and a closed position, wherein said duck-bill shaped valve has a central opening when in said open position, said central opening having a flow path along said longitudinal axis, so as to facilitate a flow from the antistatic holding chamber to a patient, wherein the duck-bill shaped valve is configured to block a flow of exhaled air upstream in the direction of the antistatic holding chamber, and the duck-bill shaped valve configured to permit the exhaled air to be exhausted through a sidewall of a housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A medication delivery apparatus comprising:
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an antistatic holding chamber that has an input end and an output end spaced apart along a longitudinal axis; a patient interface component connected to said output end and comprising an interior surface defining a flow passage; a duck-bill shaped valve disposed adjacent said output end, said duck-bill shaped valve comprising a flexible material and moveable between an open position and a closed position, wherein said duck-bill shaped valve has a central opening when in said open position, said central opening having a flow path along said longitudinal axis, so as to facilitate a flow from said antistatic holding chamber to a patient, wherein said duck-bill shaped valve is configured to block a flow of exhaled air upstream in the direction of said antistatic holding chamber; and a receptacle comprising a flexible material positioned at the input end of said antistatic holding chamber and configured to accept a source of medication. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A medication delivery apparatus comprising:
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an antistatic holding chamber that has an input end and an output end spaced apart along a longitudinal axis; a patient interface component connected to said output end and comprising an interior surface defining a flow passage; a duck-bill shaped valve disposed adjacent said output end, said duck-bill shaped valve comprising a flexible material and moveable between an open position and a closed position, wherein said duck-bill shaped valve has a central opening when in said open position, said central opening having a flow path along said longitudinal axis, so as to facilitate a flow from said antistatic holding chamber to a patient, wherein said duck-bill shaped valve is configured to block a flow of exhaled air upstream in the direction of said antistatic holding chamber; and an adaptor positioned between said patient interface and said antistatic chamber, said adaptor comprising a housing configured with a vent. - View Dependent Claims (21, 22, 23)
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Specification