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. 22, 2005
Filed:
Sep. 18, 2000
Thomas Nilsson, Mariefred, SE;
Lars-gunnar Nilsson, Köping, SE;
Thomas Nilsson, Mariefred, SE;
Lars-Gunnar Nilsson, Köping, SE;
Microdrug AG, Hergiswil NW, CH;
Abstract
An electro-dose constitutes a metered medical powder and is formed from an electro-powder constituting an active powder substance or a dry powder medical formulation being transferred onto a device member forming a dose carrier. The electro-dose prepared from an electro-powder presents a fine particle fraction (FPF) having of the order 50% or more of its content with a particle size between 0.5-5 μm. The electro-powder of such a metered electro-dose further provides electrostatic properties regarding absolute specific charge per mass after charging of the order 0.1 to 25 μC/g and presents a charge decay rate constant Qof more than 0.1 sec with a tap density of less than 0.8 g/ml and a water activity aof less than 0.5. The electro-dose porosity is adjusted to obtain an optimized porosity value in percent of 75 to 99.9 calculated as 100−100×(Density/Density).