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:
Nov. 18, 2014
Filed:
Aug. 20, 2012
John W. Gibson, Springville, AL (US);
Arthur J. Tipton, Homewood, AL (US);
Richard Holl, Ft. Collins, CO (US);
Stacey Meador, Vance, AL (US);
John W. Gibson, Springville, AL (US);
Arthur J. Tipton, Homewood, AL (US);
Richard Holl, Ft. Collins, CO (US);
Stacey Meador, Vance, AL (US);
Durect Corporation, Cupertino, CA (US);
Abstract
A coaxial implant has been developed using biodegradable polymeric materials. The coaxial implant has a core containing drug, surrounded by a semi-permeable membrane that controls the rate of release of material from the core. The core containing the drug and the polymer membrane(s) can be the same or different polymer. The core acts as a reservoir of drug, which partitions from the core polymer to form a saturated solution of drug at the polymer membrane.