Patent ID: 7954491
Filing Date: 2011-06-07
Classification: A61K,A61M,A61P

Abstract:
1. A method of delivering an agent to the pulmonary system of a compromised patient having a peak inspiratory flow rate of less than about 20 liters per minute, in a single breath-activated step, comprising administering a particle mass comprising an agent from a dry powder inhaler having a receptacle containing less than 5 milligrams of the mass, and wherein the lung deposition in the patient of the total dose of the mass in the receptacle is at least about 50% and wherein the inhaler comprises: a first casing portion; a cylindrical chamber, defined by a wall of circular cross-section, coupled to the first casing portion, the chamber having a proximal end and a distal end, the chamber comprising a ring circumferentially coupled to an inner surface of the chamber; and a second casing portion removably coupled to the first casing portion, the second casing portion comprising an inhalation portion disposed at the proximal end of the chamber when the first and the second casing portions are coupled, the inhalation portion comprising a hemispheric region defining a plurality of apertures configured to emit the mass.