Vaginal device
AssigneeVLI Corporation
InventorsBruce W. Vorhauer, Thomas A. Dobbie, Jr.
Life of this patent
Estimating the term…
Abstract
A vaginal device adapted for insertion and placement in the human vaginal cavity and subsequent removal therefrom for the administration of spermicide or a variety of medications such as anti-infectives, anti-inflammatories, estrogens, progestogens, and the like. When used as a contraceptive, the vaginal device covers/blocks the cervix, soaks up and traps sperm, and slowly releases a spermicide.
Claims24
A vaginal device adapted for insertion and placement in the human vaginal cavity and subsequent removal therefrom, comprising:
- a spermicide-foaming agent in a dry weight percentage of from about 10% to about 50%, and
- a water-catalyzed foamed urethane polymer from which the spermicide is slowly released from the sponge during use.
A vaginal device adapted for insertion and placement in the human female vaginal cavity and subsequent removal therefrom, for the local administration of a drug, comprising:
- a drug for local delivery to the vaginal area,
- a foaming agent in a dry weight percentage of form about 10% to about 50%, and
- a water-catalyzed foamed urethane polymer from which the drug is slowly released from the sponge during use.
A method for forming a vaginal device adapted for insertion and placement in the human vaginal cavity and subsequent removal therefrom;
- and
- mixing from about 10% to 50% by dry weight of a foaming agent with a water-catalyzed, foam-forming urethane prepolymer and a dry agent for local delivery to the vaginal area;
- and
- permitting the mixture of prepolymer, compound, and foaming agent to foam and form a stable, flexible, sponge-like structure from which the drug is slowly released from the sponge-like structure while in the vagina over a period of time.
A method for forming a vaginal device adapted for insertion and placement in the human vaginal cavity and subsequent removal therefrom, the device for the local administration of a spermicide, comprising:
- mixing from about 10% to about 50% by dry weight of a spermicide-foaming agent with a water catalyzed, foam-forming urethane prepolymer;
- and
- permitting the mixture of prepolymer and spermicide-foaming agent to foam and form a stable, flexible, sponge-like structure from which the spermicide-foaming agent is slowly released from the sponge structure while in the vagina over a period of time.
Dependencies are inferred from the claim text.