Actuation inhibitor for metered dose inhalers

Surgery – Liquid medicament atomizer or sprayer – Pre-pressurized container holding medicament

Reexamination Certificate

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Details

C222S153130, C221S154000

Reexamination Certificate

active

06971381

ABSTRACT:
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.

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“Canister retention feature for inhalation device”, Research Disclosure, Feb. 1995, No. 370.

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