pessary; contraceptive diaphragm
Medical term for a vaginal device used for contraception or to support pelvic organs. In Japanese, it is commonly understood as a contraceptive diaphragm.
The doctor recommended using a pessary for contraception.
A pessary is sometimes also used to treat uterine prolapse.
Some women use a diaphragm for contraception.
She had the diaphragm fitted under a doctor's guidance.