Inflatable intrauterine contraceptive device for postpartum use

摘要

A Y-shaped IUD with an inflatable balloon between its two arms; the IUD is to be inserted into the uterus shortly after childbirth or abortion when the uterus is enlarged; after insertion into the uterus, the IUD is inflated through a check valve; another check valve permits the inflated IUD to shrink by leaking out of fluid as the enlarged uterus goes through postpartum or postabortion involution; inlet and outlet of inflation fluid is through tube means in which are located the check valves; the inflation tube can be separable from the IUD after inflation, leaving only an outlet tube.