Barrier contraceptive torus

Details Barrier contraceptive torus Barrier contraceptive torus

1979-11-20

1982-04-27

Rosenbaum, C. Fred

Surgery

Truss

Pad

128260, A61F 546

Patent

active

043265103

ABSTRACT:
A barrier contraceptive device and a method for preventing conception utilizing the device. The device comprises a torus of biocompatible material sized to fit in a vagina, structure--such as overlapping flaps--being provided with the torus for providing a primary barrier preventing direct ejaculation into the cervix while allowing fluid drainage from the cervix. The material forming the torus contains a spermicide and is operative to allow release of the spermicide to maintain an effective level of spermicide in the area between the torus and the cervix to kill any sperm that passes the primary barrier. The torus is constructed so that the spermicide is more readily releasable through the inner peripheral surface thereof than the outer peripheral surface thereof. The torus releases an effective amount of spermicide approximately over a period of time from the last day of menses until the start of the next menstrual period, the torus being inserted about the last day of menses and removed and disposed of at about the start of the next menstrual period.

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patent: 4219016 (1980-08-01), Drobish et al.
Parfar International Workshop on New Developments in Vaginal Contraception, World Health Organization.

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