Airbrake
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 30, 2003
Grant Date -
N/A
app pub date -
Oct 17, 2000
filing date -
Sep 25, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device is disclosed for controlling the duration of an administration of a prescribed dose of dry powder to a user's lung when inhaling the powder by use of a dry powder inhaler (DPI). The present device controls the speed of a moving cassette (4) carrying medical powder doses to one by one be administered by the DPI to a user. Generally the dose is pre-metered and applied to the cassette in the form of a strip (31) or a series of spots of ready-prepared powder. The present device using the airbrake arrangement (22) prolongs the time during which the pre-metered powder dose is released to the inhalation air. Adjustment means of the airbrake arrangement (22) define leakage of air (36) and thereby motion speed of a spring-loaded cassette (4). During the motion of the cassette the powder dose is sucked from the prepared dose powder strip onto the cassette (4) by a nozzle (1) connected to a mouthpiece used for inhaling medical powder from the dry powder inhaler.
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