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US 5,341,800 AGranted
Medicament inhalation device and formulation
AssigneeFisons Limited
InventorsAndrew R. Clark, John L. Hart
Life of this patent
Estimating the term…
Abstract
A method of compacting and administering a powdered inhalation medicament for use in an inhalation device includes compacting a body of loosely powdered inhalation medicament such that the degree of compaction is sufficient to hold the body together solely due to the force of compaction and placing the compacted body into the inhalation device and abrading the compacted body to obtain a plurality of unit doses of the medicament.
Claims1
A method of administering a powdered inhalation medicament from an inhalation device comprising the steps of:
- obtaining a tightly compacted body of powdered inhalation medicament having a predetermined shape and including an active ingredient having a particle size of from 1 to 10 microns, the degree of compaction being sufficient to hold said powdered inhalation medicament together solely due to the compaction such that said tightly compacted body will retain its shape and structural integrity upon handling;
- placing said tightly compacted body in said inhalation device;
- abrading said tightly compacted body in said inhalation device so as to sequentially obtain a plurality of unit doses of said powdered inhalation medicament from a single tightly compacted body.
Dependencies are inferred from the claim text.