초록 ▼

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 airflow inhibiting mechanism connected to a blocking plate positioned

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 airflow inhibiting mechanism connected to a blocking plate positioned to selectively block fluid flow in the secondary 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.

대표청구항 ▼

[What is claimed is:] [1.]a housing including a body having:a primary inhalation passage extending through the body for allowing airflow through the body;a flow restricting member disposed in the primary inhalation passage such that air passing through the primary inhalation passage moves the flow r

[What is claimed is:] [1.]a housing including a body having:a primary inhalation passage extending through the body for allowing airflow through the body;a flow restricting member disposed in the primary inhalation passage such that air passing through the primary inhalation passage moves the flow restricting member between a first, nonrestricting position, and a second, restricting position wherein the flow restricting member restricts airflow through the primary inhalation passage;a secondary inhalation passage extending at least partially through the body;a blocking member disposed in communication with the second inhalation passage for selectively preventing airflow through the second inhalation passage, the blocking member being moveable between a first, closed position to block airflow through the secondary inhalation passage and a second, open position wherein the blocking member does not prevent airflow through the secondary inhalation passage; anda gear mechanism disposed operationally between the flow restricting member and the blocking member such that the movement of the flow restricting member moves the gear mechanism and the gear mechanism moves the blocking member between the first and second positions.