Details for Patent: 4,957,119

Summary for Patent: 4,957,119

Title:	Contraceptive implant
Abstract:	The invention relates to an implant of polymeric material which can release a contraceptive agent for a relatively long time when fitted subcutaneously or locally. The implant comprises a core material of ethylene/vinyl acetate copolymer which functions as a matrix for a contraceptive substance, an ethylene/vinyl acetate membrane encasing the core material, and a contact layer at the interface of the core material and membrane which prevents the separation of the core material from the membrane. The implant of the invention is made by a co-extrusion process.
Inventor(s):	de Nijs; Hendrik (Oss, NL)
Assignee:	Akzo N.V. (Arnhem, NL)
Application Number:	07/229,066
Patent Claim Types: see list of patent claims	Device; Use;

Drugs Protected by US Patent 4,957,119

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate

Foreign Priority and PCT Information for Patent: 4,957,119

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Netherlands	8701868	Aug 08, 1987

International Family Members for US Patent 4,957,119

Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	86484
Australia	2044988
Australia	603475