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:
Mar. 04, 2003
Filed:
Jun. 07, 2001
Lars-Gunnar Nilsson, Köping, SE;
Thomas Nilsson, Mariefred, SE;
Microdrug AG, Hergiswil NW, CH;
Abstract
An inhaler device and a method in which powder for inhalation is jetted off a prepared device surface containing a defined pre-metered quantity of finely divided powder. The jetting function is obtained by a directed air stream pushing or cutting free a medical powder applied to a carrier surface and by creating a stream of air dispersing the powder into inspiratory air at the moment it is being inhaled. The inhaler device includes active (air permeable) porous walls for preventing finely divided powder from sticking to the inner faces of the inhaler device by creating a pressure gradient across the active wall, thus forcing a small flow of air through the active wall thereby keeping the powder from sticking to the inner faces.