Patent ID: 6056169
Filing Date: 2000-05-02
Classification: A61M

Abstract:
An inhaler (1) for dispensing accurate and reproducible doses of powder, said inhaler including an expulsion channel (2) opening out in an outlet orifice (3), and being characterized in that it comprises in combination:a pre-dosing device (100) having the powder in individual reservoirs (101), each reservoir (101) containing one dose of powder;a transfer device (200) for transferring a dose of powder in full into said expulsion channel (2) on each actuation of the inhaler; andan air flow source (300) comprising a pump (301) triggerable by the user inhaling, said air flow source (300) sending a flow of air into said expulsion channel (2) towards said outlet orifice (3) to expel said dose of powder;wherein said reservoirs (101) are hermetically sealed from the atmosphere;and wherein said transfer device (200) includes opening means and transfer means for respectively opening the reservoir (101) and transferring its dose of powder into said expulsion channel (2) before the user inhales.