Development of reversible oviductal polyethylene contraceptive plugs / 中国医疗器械杂志

An introduction of the design, features and contraceptive principle of an oviduct contraceptive plug is given in this paper. The plug is made of polyethylene, based on the oviductal morphology. It can be introduced and removed by a hysteroscope and is expected to be a transcervical, implantable and permanent intratubal contraceptive device.