Device for distributing a fluid product

Abstract

The invention relates to a device for distributing a fluid product, comprising a body (10), and at least one individual reservoir containing a single dose of fluid product, such as a powder, opening means (80) being provided for opening an individual reservoir each time the device is actuated, the device comprising an inhalation end-fitting (5) and a system (60) that is triggered by inhalation, which system comprises a deformable air chamber (61) interacting with said inhalation end-fitting (5) and a triggering element (600) interacting with said air chamber (61), so that, during inhalation through said inhalation end-fitting (5), said air chamber (61) is deformed and said triggering element (600) actuates said opening means (80) so that a reservoir is opened by said opening means, said air chamber (61) comprising a deformable lateral body (611), a first open end comprising a peripheral edge (62) encircling an aperture forming the inlet of said hollow pocket, and a second end forming the bottom of said hollow pocket, said second end comprising connecting means (63) for connecting said air chamber to said triggering element (600), said lateral body (611) taking the form of a bellows comprising a plurality of bellows portions (611a, 611b, 611c, etc.), advantageously six, arranged axially one after the other, said bellows-shaped lateral body (611) comprising bellows portions having different outside diameters and / or inside holes.

Description

technical field [0001] The present invention relates to a fluid product dispensing device, and more particularly to a dry powder inhaler. Background technique [0002] Inhalers are well known in the art. There are different types of inhalers. The first type of inhaler includes a reservoir that receives multiple doses of powder, the inhaler is equipped with a metering device that allows a dose of powder to be dispensed from the reservoir at each actuation. The powder separated to direct the dose into an exit channel for dispensing to the user. Inhalers comprising individual reservoirs, such as capsules, which are loaded in the inhaler just prior to use, are also described in the prior art. An advantage of these devices is that the entire dose does not need to be stored in the device, so that the size of the device can be reduced. Conversely, use is more complicated since the user is forced to load a capsule into the inhaler before each use. Another type of inhaler consis...

AI Technical Summary

Problems solved by technology

A user who realizes that his dose is incomplete will load a new dose into the device, and when this new dose is inhaled, part of the previous dose that was lost in the device may thus be expelled at the same time as the new dose, causing an overdose. dose

Depending on the treatment under consideration, such overdoses can be very harmful and limiting the risk of such overdoses to the greatest extent is an increasing requirement from national regulatory authorities

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