Inhaler with dose control
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United States of America Patent
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-
N/A
Issued Date -
Dec 19, 2002
app pub date -
Jun 13, 2001
filing date -
Jun 13, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A dry powder inhaler includes systems to prevent or inhibit inadvertent delivery of multiple doses. A latching or locking actuation button prevents closing the inhaler and release of a subsequent dose, until the first dose is inhaled. The actuation button is released, under control of an electronic controller linked to a sensor which senses inhalation. A latching system prevents closing the inhaler until the latching system is released, helping the patient to avoid inadvertently releasing multiple doses. The latching system may include a lockout, also controlled by an electronic controller or microprocessor, which prevents closing the inhaler until the released dose is inhaled. A visual warning system may also be provided to indicate a potential inadvertent multiple dose condition to the patient.
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