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:
Apr. 17, 2012
Filed:
Jul. 10, 2003
Andreas Lendlein, Berlin, DE;
Susi Steuer, Aachen, DE;
Annika Tuleweit, Aachen, DE;
Abstract
A drug release system is disclosed comprising a laminate structure comprising at least one layer comprising a matrix made from a shape memory material and at least one drug dispersed in the matrix, and layers from a shape memory material not containing a drug and sandwiching the at least one layer comprising the drug(s) on both surfaces, wherein the shape memory material of the layers not containing a drug, after triggering of the shape memory effect, controls the release rate of the drug(s). Another embodiment comprises at least one drug, a reservoir for receiving the drug(s), and at least one of a coating and a membrane closing the reservoir, wherein one of a material for the reservoir and a material for the coating or membrane is made from a shape memory material and wherein the shape memory material, after triggering the shape memory effect, controls the rate of release of the drug(s).