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. 14, 2015
Filed:
Mar. 30, 2011
Martin Mueller, Dresden, DE;
Martin Mueller, Dresden, DE;
LEIBNIZ-INSTITUT FUER POLYMER-FORSCHUNG DRESDEN E.V., Dresden, DE;
Abstract
A method that relates to the fields of polymer chemistry, pharmacy and medicine and releases drugs as a component of implants into the environment of the implant. A method that, in a simple and easily reproducible manner, generates a drug delivery system, which releases drugs in a locally targeted and controllably delayed manner. Polyanions and polycations are mixed in a liquid in a non-stoichiometric ratio, relative to the charged monomer units, wherein drugs are added to the polyelectrolytes either before, during or after the mixing, or charge-carrying drugs and an oppositely charged polyelectrolyte are mixed, and after the mixing the polyelectrolyte complex produced is applied to the surface of a medical structure or material or is positioned on the surface directly at the location where the drug is to be released.