Extra intra-uterine device for birth control. (Machine-translation by Google Translate, not legally binding)

摘要

Intra-extra uterine device for birth control, wherein constitutes an area cap-shaped, whose center emerge by you concava an offshoot, conically curved, topped by its free end by a widening pear-shaped, so the portion concava cover matrix, exercising the role of windy which is favored by a perimeter flange, for your inner part or concava, introducing the stem in it, being in this position merced to widening in ending, and your curvature that facilitates its engagement in the neck of the womb. (Machine-translation by Google Translate, not legally binding)