Breath actuated dry powder inhaler and tape dose strip

Details Breath actuated dry powder inhaler and tape dose strip Breath actuated dry powder inhaler and tape dose strip

2008-01-29

2008-01-29

Yu, Justine R. (Department: 3771)

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

C128S203210, C128S203120, C604S058000

Reexamination Certificate

active

07322353

ABSTRACT:
A dry powder inhaler, including a housing having an airflow path leading from an inlet, past a powder release location, to a mouthpiece; a drive spool engaged with a capstan adjacent to the powder release location; a spring biasing a ratchet into engagement with the drive spool; and a breath trigger in the airflow path. The breath trigger is moveable from a first position, wherein the breath trigger holds the ratchet, to a second position, wherein the breath trigger releases the ratchet to allow the ratchet to turn the drive spool.

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