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

07322354

ABSTRACT:
A method for operating a dry powder inhaler, the dry powder inhaler having a dose tape having spaced apart doses of a powder pharmaceutical, each dose being in a respective sealed blister. The inhaler includes a breath actuated blister opening system that sequentially opens a blister on the tape. The method involves routing the dose tape between first and second rotating elements; spring biasing the first rotating element to turn in a first direction; holding the first rotating element from rotating against the spring biasing; and releasing the first rotating element, and allowing it to rotate a fraction of one rotation, when air flows adjacent to the first rotating element.

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