| 摘要 |
A vaginal device provides physical and chemical barriers to contraception or protection against sexually transmitted diseases, or both. The device includes a towelette having approximately 1 to 10 ml of preventive formulation incorporated therein by absorption. During intercourse, the towelette rests in the upper vagina and effectively functions as both a physical and chemical barrier to contraception. In some embodiments, the towelette may become compressed into a crumpled, disc-like shape, which may enhance its properties as a physical barrier. In other embodiments, the vaginal device includes a flexible ring that is affixed to the towelette to define a dome-shaped towelette portion on one side of the ring and a depending skirt on the other side, with the dome portion being designed to cover the cervix. Means to facilitate insertion and removal of the device are described. In alternative embodiments, the vaginal device may incorporate a therapeutic formulation for treatment of vaginal conditions such as vaginal candidiasis, trichomoniasis and bacterial vaginosis or for delivering medication intended for systemic administration.
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