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. 03, 2015
Filed:
Jun. 28, 2007
Ralph A. Chappa, Prior Lake, MN (US);
Robert W. Hergenrother, Eden Prairie, MN (US);
Paula Bushendorf, Brooklyn Park, MN (US);
Joram Slager, St. Louis Park, MN (US);
Ralph A. Chappa, Prior Lake, MN (US);
Robert W. Hergenrother, Eden Prairie, MN (US);
Paula Bushendorf, Brooklyn Park, MN (US);
Joram Slager, St. Louis Park, MN (US);
SurModics, Inc., Eden Prairie, MN (US);
Abstract
The present invention relates to relates to combination degradable and non-degradable matrices and related methods. In an embodiment, the invention includes an active agent delivery matrix including a degradable polymer network, a non-degradable polymer network, the non-degradable polymer network interspersed within the degradable polymer network, and an active agent. In an embodiment, the invention includes an active agent elution control matrix including a degradable polymer; and a non-degradable polymer interspersed with the degradable polymer. In an embodiment, the invention includes a method of making an active agent delivery matrix including mixing a degradable polymer with a first solvent to form a degradable polymer solution; mixing a non-degradable polymer with a second solvent to form a non-degradable polymer solution; and simultaneously depositing the degradable polymer solution and the non-degradable polymer solution onto a substrate.