Balloon pessary for blocking fallopian tubes - is inflatable double balloon containing X:ray opaque thread in wall

摘要

The balloon pessary closes the fallopian tubes for reversible sterilisation. It has an inflatable double balloon (1) which seals off the entrance to both of the tubes (3). A thread which is opaque to X-rays is built into the wall to simultaneously serve as a reinforcement, and to show the pessary position. Once the balloon is filled a sealing mechanism closes itself and the probe for the pessary is removed. The probe is a long thin flexible, blunt cannula coupled to a syringe and passing right inside the balloon pessary. It serves both for the hysteroscopic placing of the pessary and for filling the balloon. There is a low risk of infection, and no drugs are required, nor surgical opening of the stomach.