Contraceptive intracervical device and novel nonsystemic agents

Details Contraceptive intracervical device and novel nonsystemic agents Contraceptive intracervical device and novel nonsystemic agents

1991-01-30

1993-07-06

Hafer, Robert A.

Surgery

Female reproductory tract shields, supports, or birth...

With contraceptive, spermacidal, or antifertility agent

128830, A61F 614

Patent

active

052244938

ABSTRACT:
An intracervical device for the controlled release of an active agent for the prevention of both specific sexually transmitted diseases and pregnancy. The device consists of an entirely erodible polymer, or a combination of an erodible polymer with a skeletal polymer capable of maintaining therefor mechanical properties over long duration in the body. The active agents can include one or more than one of a large family of insoluble metal salts which have been shown to affect sperm motility and/or viability and are effacious in the prevention of sexually transmitted diseases. These agents are slowly released over a defined period of time ranging from one month to up to 18 months in duration due to erosion of the polymer matrix.

REFERENCES:
patent: 3545439 (1970-12-01), Duncan
patent: 3563235 (1971-02-01), Zipper
patent: 3803308 (1974-04-01), Zipper
patent: 3834378 (1974-09-01), Lerner et al.
patent: 3920805 (1975-11-01), Roseman
patent: 4449980 (1984-05-01), Millar et al.
patent: 4807610 (1989-02-01), Gainutdinova et al.
patent: 5019096 (1991-05-01), Fox, Jr. et al.

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