BREATH ACTUATED INHALER

A metered dose inhaler and in particular, a breath actuated metered dose inhaler, providing a valve port (1095) and a diaphragm (1000) for a pneumatic force holding unit of a breath actuated metered dose inhaler, a flap valve (36) for the canister fire system of a breath actuated metered dose inhale...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KENT, Trevor, PRENDERGAST, Paul, WALSH, Declan, THOMPSON, Niall, BUCK, Daniel
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	A metered dose inhaler and in particular, a breath actuated metered dose inhaler, providing a valve port (1095) and a diaphragm (1000) for a pneumatic force holding unit of a breath actuated metered dose inhaler, a flap valve (36) for the canister fire system of a breath actuated metered dose inhaler, as well as methods for manufacturing and assembling the same. The valve port further comprises an annular boss (1100) defining a valve orifice channel (78), two or more radially outwardly extending projections (1106, 1107) defining a path through which polymer passed to form the boss during injection moulding, wherein the radially outwardly extending projections are substantially uniformly circumferentially separated, preferably wherein the boss has a longitudinal axis (X) which passes through the valve orifice channel, and wherein two radially outwardly extending projections and the valve orifice channel lie in a common plane coincident with the longitudinal axis.