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US 6,871,647 B2Granted
Inhaler
AssigneeAdvent Pharmaceuticals Pty Ltd
InventorsRobert David Allan, Gregory Charles Pike
Life of this patent
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AssigneeAdvent Pharmaceuticals Pty Ltd
InventorsRobert David Allan, Gregory Charles Pike
Estimating the term…
An inhaler for delivering metered doses of powdered medicament, the inhaler having a plurality of compartments spaced in an array and each arranged to contain a metered dose of the medicament, a lever to displace the compartments one by one into line with an inhalation aperture that constitutes a mouthpiece, each compartment including inner and outer edges, the plurality of compartments being closed by a sealing layer, the inhaler further having a mechanism adapted to lift the sealing layer off the inner and outer edges of the compartment to open an air passageway defined by the compartment and the sealing layer so that, in use, on inhalation through the mouthpiece, air flow in the air flow passageway picks up and entrains the powder in the compartment to be drawn with the air out of the inhaler through the mouthpiece.
An inhaler for delivering metered doses of powdered medicament, the inhaler comprising a plurality of compartments spaced in an array and containing a metered dose of the medicament, a lever to displace the compartments one by one into line with an inhalation aperture of a mouthpiece, wherein the plurality of compartments include inner and outer edges, wherein the plurality of compartments are closed by a sealing layer secured to the compartments, and wherein the inhaler further includes a mechanism adapted to lift first and second spaced portions of the sealing layer off the inner and outer edges of at least one compartment of the plurality of compartments while leaving an intermediate portion of the sealing layer, between the first and second portions, secured to the at least one compartment to open an air passageway defined by the at least one compartment and the intermediate portion of the sealing layer secured to the at least one compartment so that, in use, on inhalation through the mouthpiece, air flows in the air flow passageway in contact with the intermediate portion and picks up and entrains the powder in the at least one compartment to be drawn with the air out of the inhaler through the mouthpiece.
A disposable cartridge adapted to be received in a body of an inhaler, the cartridge having a plurality of compartments spaced in an array and each arranged to contain a metered dose of medicament, the compartments being displaceable one by one into line with an outlet aperture, each compartment including inner and outer edges secured to the compartments, the plurality of compartments being closed by a sealing layer, and a mechanism adapted to lift first and second spaced portions of the sealing layer off the inner and outer edges of at least one compartment of the plurality of compartments while leaving an intermediate portion of the sealing layer between the first and second portions secured to the at least one compartment to open an air passageway defined by the at least one compartment and the intermediate portion of the sealing layer secured to the at least one compartment so that, in use, air flows in the air flow passageway in contact with the intermediate portion and picks up and entrains the powder in the at least one compartment to be drawn with the air out of the cartridge through the outlet aperture.
An inhaler for delivering metered doses of powdered medicament, the inhaler comprising a body adapted to receive a disposable disc shaped cartridge, the cartridge having a plurality of compartments spaced in an annular array and each arranged to contain a metered dose of the medicament, a lever to displace the compartments one by one into line with an inhalation aperture positioned in the body to constitute a mouthpiece, each compartment including inner and outer edges, the plurality of compartments being closed by a sealing layer secured to the compartments, the inhaler also being provided with a mechanism adapted to lift first and second spaced portions of the sealing layer off the inner and outer edges of at least one compartment of the plurality of compartments while leaving an intermediate portion of the sealing layer between the first and second portions secured to the at least one compartment to open an air passageway defined by the inner and outer edges, the at least one compartment and the intermediate portion of the sealing layer secured to the at least one compartment so that, in use, on inhalation through the mouthpiece, air flows in the air flow passageway in contact with the intermediate portion and picks up and entrains the powder in the at least one compartment to be drawn with the air out of the inhaler through the mouthpiece.
An inhaler for delivering metered doses of powdered medicament, the inhaler comprising:
An inhaler for delivering metered doses of powdered medicament comprising:
A disposable cartridge for an inhaler for delivering metered doses of powdered medicament comprising:
Dependencies are inferred from the claim text.