Medicament inhaler and method

Details Medicament inhaler and method Medicament inhaler and method

A - Human Necessities

61

M

A61M 11/02 (2006.01) A61M 15/00 (2006.01)

Patent

CA 2141465

A new inhalation device, which during operation causes an aerosol to be formed inside a chamber such as a capsule which occludes one end of the inhalation tube, the capsule having holes at its extremities which admit airflow. The airflow causes the powder contained inside the capsule to be surprisingly transported to the capsule extremity contrary to the direction of inhalation, that is towards the air entry holes in the capsule, and then to form an aerosol until all powder has been removed from the capsule or chamber through the tube, the duration of inhalation being chiefly regulated by the size and proportion of the capsule holes. The tube has air inlets downstream of the capsule to permit a balanced airflow that will transport the finely suspended powder into the lungs, maximizing the fraction of medicament deposited therein.

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