Details for Patent: 5,740,794
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Summary for Patent: 5,740,794
Title: | Apparatus and methods for dispersing dry powder medicaments |
Abstract: | A method for aerosolizing a powdered medicament comprises coupling a powder inlet end of a feed tube with a penetration in a receptacle containing the powder. Powder is drawn upward through the tube and dispersed in a high pressure gas stream flowing past a portion of the feed tube. Apparatus comprise the feed tube mounted within a base enclosure proximate a holder for one or more receptacles, which may be in the form of a cartridge containing a plurality of receptacles formed in a continuous web. The cartridge may be reciprocated relative to the feed tube and a separate piercing mechanism in order to sequentially piercing the receptacle and thereafter couple the feed tube through the resulting penetration for extracting the powder. Alternatively, penetration(s) through the receptacle may be formed as the feed tube is coupled, or some penetrations formed prior to coupling with other penetrations formed at the time of coupling. |
Inventor(s): | Smith; Adrian E. (Belmont, CA), Burr; John D. (Redwood City, CA), Etter; Jeffrey W. (Castro Valley, CA), Axford; George S. (Menlo Park, CA), Anthony; Jack M. (Palo Alto, CA) |
Assignee: | Inhale Therapeutic Systems (Palo Alto, CA) |
Application Number: | 08/487,184 |
Patent Claim Types: see list of patent claims | Device; Use; |
Drugs Protected by US Patent 5,740,794
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>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Patented / Exclusive Use | >Submissiondate |
International Family Members for US Patent 5,740,794
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
---|---|---|---|---|---|
African Regional IP Organization (ARIPO) | 9801369 | ⤷ Try a Trial | |||
African Regional IP Organization (ARIPO) | 987 | ⤷ Try a Trial | |||
Argentina | 013854 | ⤷ Try a Trial | |||
Argentina | 042921 | ⤷ Try a Trial | |||
Austria | 189124 | ⤷ Try a Trial | |||
Austria | 220327 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |