Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1978-09-05
1980-03-11
Recla, Henry J.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
128272, 215DIG3, 206 38, 7170, 131170R, A61M 1506, A61M 1508
Patent
active
041923090
ABSTRACT:
A breath-actuated inhalation device for dispensing a powdered medicament from a powdered medicament-holding capsule, comprising an elongate housing having a passageway for the movement of air therethrough, one end of the housing being an output end adapted for insertion into a user's mouth or nasal passage, the passageway having an inlet end terminating in an emptying chamber at the output end of said housing, the cross-sectional area of the passageway being less than the cross-sectional area of the emptying chamber, and means associated with said housing for receiving a powdered medicament-holding capsule. A collar surrounds at least a portion of the periphery of the housing adjacent the emptying chamber and has at least one substantially flat surface with a notch therein, which allows a first, smaller part of a two-part capsule to fit therein but which is too small to allow the second, larger part of the capsule to fit therein. When the smaller, first part of the capsule is placed within the notch with the leading edge of the larger, second part of the container contacting said flat surface of said collar, and the first part is pulled away from the second part, the capsule is opened by virtue of the second larger part being retained by said flat surface.
REFERENCES:
patent: 2587215 (1952-02-01), Priestly
patent: 2655259 (1953-10-01), Davoren
patent: 3858583 (1975-01-01), Hallworth et al.
patent: 4098273 (1978-07-01), Glenn
Hirsch Joseph I.
Moran Tom M.
Recla Henry J.
Syntex Puerto Rico Inc.
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