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:
Jun. 17, 2014
Filed:
Apr. 07, 2010
Bruce Variano, White Plains, NY (US);
Jeffrey Speck, North Haledon, NJ (US);
Maria Teresa Sallent, Jackson Heights, NY (US);
Simone Evans, Brooklyn, NY (US);
Bruce Variano, White Plains, NY (US);
Jeffrey Speck, North Haledon, NJ (US);
Maria Teresa Sallent, Jackson Heights, NY (US);
Simone Evans, Brooklyn, NY (US);
The Population Council, Inc., New York, NY (US);
Abstract
Multi-layered vaginal ringscomprising silicone elastomers and pharmaceutically active ingredients are disclosed. The rings comprise a number of layers, at least one of which contains a pharmaceutically active ingredient, and each of which is a silicone elastomer. The multiple layers preferably are produced from these layers of different compositions, including an inner layer, a middle layer, and an outer layer. After extrusion and simultaneous curing, however, the ringincludes a contiguous body which comprises a continuous silicone body providing unimpeded diffusion of the pharmaceutically active ingredient from the inner layer (s)to the outer layer (s). Methods of producing these vaginal rings and of using them are also disclosed.