Actuation inhibitor for metered dose inhalers

A - Human Necessities – 61 – M

Patent

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A61M 15/00 (2006.01) B65D 83/14 (2006.01)

Patent

CA 2513173

An actuation inhibitor for metered dose inhalers comprises an annular band of semi-rigid plastics material having a substantially circular cross-section, with an upstanding wall encompassing from about 260~ to 315~, a gap in the wall of from about 45~ to 100~, and a pair of outwardly projecting walls, one at each side of the gap. The inside diameter when at rest in an unstressed manner is slightly smaller than that of a medication canister. The height is from about 40% to 65% of the predetermined diameter, and the length of each of the projecting walls is from about 10% to 50% of the height. The semi-rigid plastics material is sufficiently flexible to permit the pair of projecting walls to be spaced apart one from the other by up to about a further 90~, and the plastic memory permits the spreading apart of the projecting walls without being overcome.

Un inhibiteur d'activation destiné à des inhalateurs à dosage mesuré comprend une bande annulaire de matière plastique semi-rigide à coupe sensiblement circulaire, avec une paroi verticale d'un arc compris entre 260· et 315?0¿, un vide dans cette paroi d'un arc compris entre 45· et 100· et, une paire de parois faisant saillie vers l'extérieur situées respectivement de part et d'autre du vide. Le diamètre intérieur, au repos, est légèrement plus petit sans contrainte que celui d'une cartouche de médication. La hauteur est comprise entre 40 % et 65 % environ du diamètre prédéterminé et, la longueur de chacune des parois saillantes est comprise entre environ 10 % et 50 % de la hauteur. La matière plastique semi-rigide est suffisamment souple pour permettre à la paire de parois saillantes d'être espacées l'une de l'autre par un arc supplémentaire allant jusqu'à 90?0¿ et, la mémoire du plastique permet l'écartement des parois saillantes sans dégradation de cette mémoire.

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