Presspart Gmbh &co. Kg

Dana Shears

David J Hibbard

Greg Falendysz

Douglas J Browne

Benjamin Jung

Hans-Peter Schmelzer

Richard Turner

Karl Edward Robinson

Benjamin Glace

Joseph St Onge

Michael Denzin

Victor Torres

Dean H Owens

Hannah Bond

Kevin Ferenc

Steve Cantley

A metered dose inhaler () for dispensing aerosol doses comprises an actuation housing () adapted to receive a canister (). The canister () is configured to move from a rest position to an activation position in which a valve () of the canister (), positioned at a valve end () of the canister (), is depressed against a bottom portion of the actuation housing such that an aerosol dose is released. The inhaler () further comprises a mechanical dose () counter comprising an indicator member which is constructed and arrangement to undergo a predetermined count-indicating motion when an aerosol dose is released. Moreover, the inhaler () comprises a triggering unit () for triggering at least one electrical switch () when the canister () is moved from the rest position to the activation position whereby an electrical signal is generated. Also part of the inhaler () is a processing unit for processing the signal generated by the switch () upon being triggered.

Metered dose inhaler

Inhaler

A dose counter includes a triggering unit having at least a first and a second trigger member thereon. The triggering unit is configured interact with the canister of a metered-dose inhaler when the canister moves in a longitudinal direction from a rest position to an activation position. A circuit assembly includes a substrate with at least a first and a second switch thereon. The first and second switches are configured to interact with the first and second trigger members when the canister moves from the rest position to the activation position. The circuit assembly includes a counting circuit that is configured to receive a signal from the first and second switches and to determine when the metered dose inhaler is activated.

Metered-dose inhaler counter with switch and metered-dose inhaler including such a counter

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Cary, NC, United States of America

Dana Shears