Importance

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Abstract

A multiple dose inhaler for the inhalation of a dry powder medicament is provided. The inhaler includes (a) a housing defining an inlet, an outlet spaced from the inlet, and an airflow path from the inlet to the outlet; (b) an elongate carrier disposed within the housing, a first portion of which carries discrete doses of the medicament, the doses being spaced from one another at predetermined substantially equidistant intervals along the length of the elongate carrier; (c) a dispensing wheel upon which the first portion of the carrier is wound; (d) a take-up wheel constructed to incrementally receive the elongate carrier from the dispensing wheel as it is unwound therefrom during use; (e) an advancement mechanism constructed to incrementally advance the elongate carrier within the housing from the dispensing wheel to the take-up wheel when the inhaler is actuated for use; (f) a brake constructed to releasably resist further advancement of the elongate carrier by the advancement mechanism after the elongate carrier has advanced an incremental distance substantially equal to the predetermined distance between the discrete doses; and (g) a trigger constructed to engage and release the brake, allowing further advancement of the elongate carrier.

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First Claim