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:
Sep. 26, 2023
Filed:
Oct. 24, 2017
Yale University, New Haven, CT (US);
Family Health International, Durham, NC (US);
W. Mark Saltzman, New Haven, CT (US);
Elias Quijano, Durham, CT (US);
Fan Yang, Branford, CT (US);
Zhaozhong Jiang, New Haven, CT (US);
Derek Owen, Durham, NC (US);
YALE UNIVERSITY, New Haven, CT (US);
FAMILY HEALTH INTERNATIONAL, Durham, NC (US);
Abstract
Biodegradable contraceptive implants and methods of making and using thereof, are preferably formed of poly(ω-pentadecalactone-co-p-dioxanone) [poly(PDL-co-DO)], a family of polyester copolymers that degrade slowly in the presence of water. The material is suitable as the basis of a biodegradable contraceptive implant that provides sustained release of a progestin at a rate similar to a commercially available nondegradable implant. In a preferred embodiment, the progestin is levonorgestrel (LNG), a hormone that prevents pregnancy by preventing the release of an egg from the ovary or by preventing fertilization of the egg by sperm. The implant may be inserted subcutaneously, allowing degradation over a period of up to about 18 or 24 months, eliminating the need for removal by a trained practitioner.