DRUG DELIVERY SYSTEM Russian patent published in 2007 - IPC A61M31/00 C08L83/04 

FIELD: medical engineering.

SUBSTANCE: system is selectable from a group having implant, intrauterine system, intracervical system or intravaginal system having core and membrane. The core has at least one therapeutic agent and at least the first and the second part. At least one separating membrane is available between the first and the second part. The core and membrane are manufactured from elastomer composition like poly(dimethylsiloxane), siloxane -based elastomer having 3,3,3-trifluoropropyl groups attached to Si atoms of siloxane links, or elastomer composition having poly(alkyleneoxide) groups available as alcoxi- terminal engrafting or units connected to polysiloxane links with carbonic silicon bonds, or as mixture of given forms and combination at least of two from them. The core and membrane have identical or different elastomer compositions.

EFFECT: enabled at least two agents release at the same time at preset rates; excluded harmful action in system damage cases.

22 cl, 14 dwg