Patent ID: 6119688
Filing Date: 2000-09-19
Classification: A61M,G01F

Abstract:
A device for reproducibly dispensing multiple, individual doses of a micronized, dry powder medicament comprising:a housing,a medicament reservoir for holding a bulk supply of dry powder medicament,a dosage member having a dosage chamber for releasably containing a predetermined, agglomerated dose of said dry powder medicament,an agglomerator for transferring a quantity of the dry powder medicament from said medicament reservoir to said dosage chamber and for packing said quantity into said predetermined, agglomerated dose within said dosage chamber,a pressurization assembly including:a pressurization member for reproducibly generating a deagglomeration pressure sufficient to deagglomerate the dose within said dosage chamber,a pressure reservoir for intermittently storing said deagglomeration pressure, anda pressure outlet for releasing said deagglomeration pressure from said pressure reservoir; andan actuator for registering said pressure outlet and said dosage chamber in a registered position so that said deagglomeration pressure forcibly expels the predetermined, agglomerated dose from the dosage chamber in deagglomerated form suitable for inhalation therapy.