The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2003
Filed:
Jan. 30, 1998
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/500 ; A61M 1/600 ; B05D 7/14 ; B65D 8/306 ;
U.S. Cl.
CPC ...
A61M 1/500 ; A61M 1/600 ; B05D 7/14 ; B65D 8/306 ;
Abstract
A dry powder delivery system and method for use, the system having an elongated tube containing a matrix having a measured amount of dry particles of a therapeutic compound and a porous element having a desiccant therein. The porous element with the desiccant can be combined with the powder-containing matrix or it can be two separate elements. The pressure drop induced by inhalation of the user causes air to flow through the tube and into contact with the particles of dry powder for discharging the particles for inhalation by the user.