A - Human Necessities
61
M
A61M 15/00 (2006.01)
Patent
CA 2093809
ABSTRACT The invention relates to a method with which a preferably powder type preparation is measured out for an inhalation. The preparation for this is transferred from a reservoir to the correspondingly channelled inhalation flow produced by the patient on inhaling the product, such that the inhalation flow is swirled at the same time and the preparation is flushed out by the vortex into the current of air and is distributed in it. The inhalation instrument with which the method is carried out has a dosing element (25) which is mounted so that it has limited movement, in an outlet hole (24) of a reservoir (21), such that a dosing recess (26) at the side, in one extreme position, is located inside the reservoir (21) and, in its other extreme position, is located in the inhalation channel (11). The dosing element is actuated by the patient inhaling the product by way of an elastic element (30) or by way of a sealing cap for the mouth orifice (12) of the inhalation channel (11), whereby, with each movement of the dosing recess (26) from the reservoir (21) to the inhalation channel (11), one dose of the preparation is made available for inhalation. The inhalation instrument has a vibration mechanism with which the powder preparation is held loosely and pourably. Moreover, the inhalation instrument has a blocking mechanism (3) (which blocks the dosing operation if inhalation is not carried out with sufficient strength) and/or a dose-counting mechanism. (Fig. 2) - 43 -
Del Bon Franco
Del Bon Luigi
Del Bon Franco
Del Bon Luigi
Fetherstonhaugh & Co.
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