Importance

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Abstract

The invention relates to a nasal dispenser for atomizing pharmaceutical substances which is of elongate form and is traversed by a longitudinal channel having an open end for housing the free end of the stem of a pump or dispensing valve, its other end being intercepted by a wall provided with a hole through which the substance is dispensed. The channel has a stepped cross-section which is a minimum in proximity to said wall. The channel houses an elongate element the cross-sections of which are smaller than their surrounding cross-sections of the channel into which the element is inserted. The length of the portion of smaller cross-section of the profiled element is greater than the length of the minimum cross-section portion of said channel to define an expansion chamber within it. In the free end of the elongate element in proximity to the wall there is provided a circular central recess, from which there extend channels opening into the periphery of the element itself and substantially tangential to the recess, from the center of which there projects a peg which extends through the hole in the wall to leave a free space for the emergence of the atomized substance.

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First Claim