Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Reexamination Certificate
2006-04-11
2006-04-11
Patel, Mital (Department: 3743)
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
C604S058000
Reexamination Certificate
active
07025056
ABSTRACT:
An inhaler for producing an inhalable aerosol of a powdered medicament includes an aerosolizing device in the form of a vortex chamber (1). The vortex chamber (1) has a curved wall (12), a tangential inlet port (3) and an axial exit port (2). The radius R of the vortex chamber (1) decreases with angular extend θ. The reduction in effective cross-sectional area of the vortex chamber accelerates the gas flow between the inlet (3) and the outlet (2) to reduce deposition of the medicament.
REFERENCES:
patent: 3155573 (1964-11-01), Fowler
patent: 3921637 (1975-11-01), Bennie et al.
patent: 4452239 (1984-06-01), Malem
patent: 4860740 (1989-08-01), Kirk et al.
patent: 4919802 (1990-04-01), Katsura
patent: 4945929 (1990-08-01), Egilmex
patent: 5476093 (1995-12-01), Lankinen
patent: 5596982 (1997-01-01), Blaha-Schnabel
patent: 5632894 (1997-05-01), White et al.
patent: 5687710 (1997-11-01), Ambrosio et al.
patent: 6113078 (2000-09-01), Rock
patent: 6203519 (2001-03-01), Fagerstrom et al.
patent: 6394085 (2002-05-01), Hardy et al.
patent: 6715486 (2004-04-01), Gieschen et al.
patent: 6748947 (2004-06-01), Keane et al.
patent: 0407028 (1990-05-01), None
patent: 2340407 (2000-02-01), None
patent: 2344533 (2000-06-01), None
patent: 2353222 (2001-02-01), None
patent: 9015635 (1990-12-01), None
patent: 9301891 (1993-02-01), None
patent: 9419041 (1994-09-01), None
patent: 9915217 (1999-04-01), None
patent: 9939761 (1999-08-01), None
patent: 0071192 (2000-11-01), None
patent: 0100262 (2001-01-01), None
Clarke Roger William
Eason Stephen William
Edgson Raymond Anthony
Harmer Quentin John
Davidson Davidson & Kappel LLC
Patel Mital
Vectura Delivery Devices Limited
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