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:
Feb. 12, 2008
Filed:
Jul. 09, 2002
Staffan Folestad, Mölndal, SE;
Ingela Niklasson Björn, Mölndal, SE;
Daniel Ström, Göteborg, SE;
AstraZeneca AB, Sodertalje, SE;
Abstract
The present invention relates to a method for coating of a pharmaceutical product. The method comprises the step of producing discrete droplets () of controlled size, shape and composition with at least one micro dispenser () and distributing droplets () with controlled velocity, time of flight. Also, the method comprises the step of controlling the production frequency and modulation of the droplets (). Further, the method comprises the step of controlling the flow rate, temperature and composition of the carrier gas and directing droplets () towards particles () subjected to coating. The present invention also relates to a device for coating of a pharmaceutical product. The device comprises a droplet producing unit () and a droplet-directing unit (). The droplet producing unit () is a piezo-actuated micro dispenser () for producing discrete droplets () and controlling the size, shape and composition of said droplets ().