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AssigneeTenax Corporation (a Connecticut Corp.)
InventorsPaul Mulhauser, Jeffrey Karg, Thomas Foxen, Christopher J. Brooks
Estimating the term…
A dry powder inhalator for delivering a precise dose of a medicament contains a mesh disc impregnated with a series of spaced, medicament doses about the disc periphery. The inhalator is armed by manually retracting a finger pull extending downwardly from the bottom of the inhalator housing or rotating the bottom of the housing. The user inserts a mouthpiece on the housing into the mouth and inhales. This causes a chamber in the housing under a diaphragm to evacuate, thereby pulling the diaphragm down onto a knock out lever. The pivoting of the lever enables release of a piston into a cylinder which first compresses, and then dispenses a reduced volume of air at high pressure in a burst up through the medicament disc. When the burst of air hits the impregnated disc, the dose is forced out of the mesh's interstices, producing a cloud of the drug in its powdered form, which is inhaled by the user.
A dry powder breath-activated inhalator apparatus comprising
The inhalator of claim 6, wherein said disc includes a plurality of doses of powdered medicament spaced around its periphery and means are provided in said housing for rotating said disc upon arming said inhalator to serially present individual ones of said doses into alignment with said nozzle.
A dry powder breath-activated inhalator apparatus comprising
Dependencies are inferred from the claim text.