Patent ID: 8561608

Claim:
An inhaler device comprising an opening device for opening an individual reservoir containing a single dose of powder, said reservoir including a closure wall, said opening device comprising hollow perforator means that are adapted to perforate said closure wall of the reservoir, said hollow perforator means being connected to an expulsion channel that, in turn, is connected to and in communication with a dispenser chamber for receiving the dose of powder after the reservoir has been opened and prior to delivering the dose of powder to a dispenser orifice of said inhaler, said opening device including at least one air channel connected to said expulsion channel, such that during inhalation, an air flow passing through said at least one air channel mixes, in said expulsion channel, with the air and powder flow leaving the reservoir through said hollow perforator means, said at least one air channel is formed by a through hole made in a wall of said perforator means, said at least one through hole being oriented substantially parallel to said expulsion channel and said at least one air channel formed in a wall of said perforator means that is perpendicular to said expulsion channel, such that said air flow is oriented in the same direction as said air and powder flow; said perforator means formed at an end of the expulsion channel; wherein the opening device is fixed so as not to move relative to the body of the inhaler while the reservoir is being opened; the reservoirs are made in the form of an elongate strip comprising a plurality of individual reservoirs disposed one behind another.