Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1994-11-23
1996-04-09
Burr, Edgar S.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820312, 12820323, 12820321, A61M 1500
Patent
active
055051960
ABSTRACT:
The device for inhalation of a powdery, pharmacologically active drug consists of a supply container (3) for the drug (4), a manually actuated metering unit for providing a portioned-off quantity of inhalation substance which is picked up by the air current drawn in during inhalation and is swirled, an air inlet channel (9), a swirl chamber (W), and a connection channel (8) between the swirl cheer (W) and the metering unit, as well as a mouthpiece channel issuing from the swirl chamber (W). The metering unit here consists of a metering drum (D) which has, in its interior (5), a supply container (3) for the drug. Furthermore, the air inlet channel (9) and the connection channel (8) are arranged in such a way that they run towards each other in a V-shape. During a metering procedure, a portioned-off quantity of drug for inhalation present in the shape of a dome is provided in each case at the apex of the two air channels (8) and (9) running towards each other in a V-shape.
REFERENCES:
patent: 3837341 (1974-09-01), Bell
patent: 4907583 (1990-03-01), Wetterlin et al.
patent: 5113855 (1992-05-01), Newhouse
patent: 5243970 (1993-09-01), Ambrosio et al.
patent: 5301666 (1994-04-01), Lerk et al.
patent: 5320714 (1994-06-01), Brendel
patent: 5341800 (1994-08-01), Clark et al.
Diederich Reiner
Hegazy Ahmed
Herboth Matthias
Herold Heiko
Kleissendorf Roland
Bayer Aktiengesellschaft
Burr Edgar S.
Deane, Jr. William J.
Gerstenzang William C.
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