Abstract: A new inhalation device, which during operation causes an aerosol to be formed inside a chamber such as a capsule (4) which occludes one end (3) of the inhalation tube (1), the capsule having holes at its extremities (7,8) 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 (1), the during of inhalation being chiefly regulated by the size and proportion of the capsule holes. The tube (1) 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.

Abstract: The tracheostomy tube includes an elongate inner tube, an elongate insert, and an outer tube. The inner tube has a side wall with an outer surface having threads and a distal end of the inner tube defines an annular collar. The inner tube has a longitudinal slot extending through the side wall and the collar from the distal end to a proximal end of the inner tube. The insert is slidably mountable in the slot of the inner tube and collar. The outer tube has an inner surface with grooves formed therein to threadingly engage the threads of the inner tube to secure the tracheostomy tube to a neck of a patient.