Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1998-05-11
1999-11-23
Lewis, Aaron J.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820321, A61M 1500
Patent
active
059881631
ABSTRACT:
An inhalation-activated inhalator having a primary inhalation passage and a secondary inhalation passage disposed in communication with the primary inhalation passage and a source of medicament. The primary inhalation passage has a flow inhibiting mechanism connected to a blocking plate positioned to selectively block fluid flow between the secondary and primary inhalation passage. As the user's inhalation reaches a defined rate, the flow inhibiting mechanism restricts flow through the primary inhalation passage and moves the blocking plate to enable airflow through the secondary passage. Thus, as the user achieves a desired inhalation rate, the medicament is provided through the secondary inhalation passage, thereby optimizing the delivery of medicament to the lungs.
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Casper Robert A.
Gardner David L.
Leith Frank A.
Innovative Devices
Lewis Aaron J.
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