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:
Aug. 03, 2004
Filed:
Mar. 27, 2002
Hans-Rainer Hoffmann, Neuwied, DE;
Bodo Asmussen, Bendorf-Sayn, DE;
LTS Lohmann Therapie-Systeme AG, Andernach, DE;
Abstract
The invention relates to porous, rapidly disintegrating, active substance-containing pellets based on chitosan or a basic chitosan derivative, manufactured according to a dripping method wherein an aqueous solution or dispersion of chitosan or a basic chitosan derivative, one or more active substances, possibly further active substances and an acid is dripped into a cooling liquid having a temperature of maximally −5° C., thereby causing solidification of the solution or dispersion in the form of droplets, and wherein the solidified droplets or pellets are isolated and dried. The invention further relates to the use of these pellets in the manufacture of medicaments or diagnostic agents.