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) with an inner wall defining a valve orifice channel (78), wherein the volume of the orifice channel defined by the inner wall of the boss is greater than about 12.7 % of the volume of the boss and/or wherein then inner wall defines a frustum of an imaginary cone with an apex angle of greater than about 20 degrees, preferably from about 22 degrees to about 35 degrees.