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.

Date of Patent:
Feb. 18, 2014

Filed:

Mar. 04, 2010
Applicants:

Xingguo Cheng, San Antonio, TX (US);

Nitin Nitin, Vacaville, CA (US);

Jorge G. Rossini, San Antonio, TX (US);

Stephen T. Wellinghoff, San Antonio, TX (US);

Inventors:

Xingguo Cheng, San Antonio, TX (US);

Nitin Nitin, Vacaville, CA (US);

Jorge G. Rossini, San Antonio, TX (US);

Stephen T. Wellinghoff, San Antonio, TX (US);

Assignee:

Southwest Research Institute, San Antonio, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/00 (2006.01); A61F 13/00 (2006.01); A61L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A medical implant for drug delivery comprising an inner layer of polymer material including a drug dispersed therein and an outer layer which may then mediate the release of the drug in a controllable manner. The outer layer may adhere and/or penetrate the underlying layer and offer a protective coating along with improved mechanical strength along with the ability to hydrate and become permeable to water and allow for drug release.


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