Contraceptive device

Details Contraceptive device Contraceptive device

1989-06-12

1990-06-12

Hafer, Robert A.

Surgery

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

Pessaries

128840, A61F 1300, A61F 500

Patent

active

049324225

ABSTRACT:
A contraceptive device having a cylindrical body adapted to be retained within the cervix having a valve mechanism adapted to allow passage of menstrual fluid yet blocking seminal fluid.

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