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US 9,987,442 B2Granted
Dry powder inhaler dose counters
AssigneeAdamis Pharmaceuticals Corporation
InventorsBryan E. Rolfs, Benjamin L. Rush, Jonathan D. Toback, Peter D. Hodson, Stephan W. Stein, Michael K. Domroese
Life of this patent
Estimating the term…
Abstract
Dry powder inhaler dose counters capable of making a display move swiftly between digits, in contrast to the progressive movement that occurs in simple gearing mechanisms.
Claims20
A dose counting device comprising:
- an advancement mechanism;
- a displacement sensor that advances in association with continuous advancement of the advancement mechanism;
- and
- a transfer component that converts the advancement of the displacement sensor into intermittent motion of a units dose display;
- wherein the displacement sensor has a range of movably engaged positions wherein the displacement sensor movably engages the transfer component, and
- the dose counting device further comprises a discrete alignment mechanism capable of moving the displacement sensor backwards to one of a plurality of spatially defined positions that are not within said range of movably engaged positions.
3 more elements
A method of counting doses, the method comprising advancing an advancement mechanism,
- wherein advancement of the advancement mechanism causes a displacement sensor to advance,
- wherein the displacement sensor is in communication with a transfer component that converts the advancement of the displacement sensor into intermittent motion of a units dose display,
- wherein the displacement sensor has a range of movably engaged positions in which the displacement sensor movably engages the transfer component, and
- wherein the dose counting device further comprises a discrete alignment mechanism configured to move the displacement sensor, after the displacement sensor has been fully advanced, backwards to one of a plurality of spatially defined positions that are not within said range of movably engaged positions.
1 more element
Dependencies are inferred from the claim text.