| 摘要 |
The invention relates to a tubular pessary having a contraceptive action through the obturation of the proximal uterine tube in non-surgical manner by hysteroscopy and which can easily be worn on either side. The tubular pessary has a cylindrical, sensitive central part permitting the obturation of the uterine tube. It has a distal elastic loop, which prevents sliding back into the uterus of the device. It has a proximal elastic loop, which prevents migration of the device into the abdominal cavity and which can easily be removed through a hysteroscope. The object of the invention is to overcome the inadequacies of the known contraceptive means.
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