A spatial intrauterine contraceptive insert which after being introduced by means of a normal inserter into the uterus cavity takes on by itself the appearance of a spatial body. The insert has two arms 1, 2, the ends of which are connected permanently and formed into two spatial spirals along axes 4, 5 that intersect in an acute angle. In cross-section, the arms 1, 2 take on the shape of a circle. The parts of the arms 1, 2 which are formed as spirals of about 11/2 turns have the appearance of a mirror image. Near the end of the first turn of the spiral the arms 1 and 2 are immobilized by means of a link 6 made of copper. At the juncture point of said arms there is provided a thread 7 for facilitating the removal of the insert from the uterus.
Disclosed is an intrauterine device contraceptive to avoid pregnancy. The device comprises a vector and contraceptor, said vector consisting of a vertical stem having two horizontal arms, the arm at the end of said vertical stem being longer than the second arm, said vertical stem being twisted by a copper wire having a surface area of above 200 square millimeters. The vertical stem is made from a plastic material, generally polyethylene. The present intrauterine device contraceptive has the advantage of a complete reduction of the expulsion in view of its new particular shape.
An intrauterine device of the type having an external surface contacting the walls of the uterus after insertion therein, and said device having first walls defining a fluid-receiving cavity in at least a portion thereof. A concentrated fluid solution of a drug is present in the cavity and the drug is of the type providing an antifibrinolytic, an antifertility and antiproteolytic effect and is one or a mixture of more than one guanidine such as any aromatic monoguanidine, aromatic diguanidine, non-aromatic monoguanidine and non-aromatic diguanidine, and mixtures of one or more of the guanidines with one or more amidines.
An improved intra-uterine device which is a deformable element in the form of a plastic fibre (1) releasing a substance which is active into the uterine cavity, the fibre has several strands (3, 3') or loops (2) placed side by side and held together in one assembly zone (4) of reduced dimensions in relation to the length of the said strands or loops, and of an element for attaching it in the uterine cavity, the element being in the form of filament (5) carrying a securing element (6) for hooking to the tissue of the uterus, suitable for insertion with the aid of a needle, and integral with the the fibre. The device is applicable to the field of the intra-uterine contraceptive devices and of the devices for the treatment of the uterus.
