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1. (WO2018200431) MEDICINAL INHALER DRIVE MECHANISM

Pub. No.:    WO/2018/200431    International Application No.:    PCT/US2018/028999
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: A61M 15/00
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: MOHAMMED, Parfes
GRIFFITHS, Neale F.
WILLIAMS, Jack L.
BREWER, Richard D.
JEPPS, Gary K.
DAWSON, Christopher
ONSLOW, James L.
GROOMBRIDGE, Christopher B. J.
MOLONY, David M.
MCDERMENT, Iain G.
Title: MEDICINAL INHALER DRIVE MECHANISM
Abstract:
A drive mechanism for a medicinal inhaler, the inhaler comprising: a patient port; a canister actuable by the drive mechanism to deliver a dose of medicament to the patient port, the drive mechanism comprising: a follower which moves between a first position in which the mechanism is primed for use and a second position in which the follower engages the canister to deliver a dose of medicament to the patient port, the follower being carried on a rocker plate which pivots as the follower moves between its first and second position, wherein the rocker plate engages a switch when the follower is in its second position to indicate that a dose of medicament has been delivered to the patient port.