Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1997-05-30
1999-08-10
Weiss, John G.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820312, 12820323, A61M 1500
Patent
active
059342730
ABSTRACT:
A system for dispensing a clinically effective dose of an inhalable, pharmaceutically active compound, which system includes a dry powder inhaler device containing a powder containing the pharmaceutically active compound, wherein
(a) of the powder particles dispensed by the inhaler device (the "metered DPI dose"), at least 40% are less than about 10 microns in diameter at the point the particles exit the inhaler,
(b) the metered DPI dose is sufficient to produce a clinically effective result in a patient; and
(c) the amount of the compound in the metered DPI dose is not more than 70% of the minimal amount of the compound which, when dispensed in a pressurized metered dose inhaler, produces an equivalent clinically effective result in the same patient.
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Andersson Jan
Jagfeldt Hans
Trofast Eva
Wetterlin Kjell
AB Astra
Srivastava V.
Weiss John G.
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