Patent ID: 7080647

Claim:
A T-shaped intrauterine device adapted to be used by a human being, comprising a body of the T, a transversal stem connected to an upper part of the body on the T and constituting arms of the T, an extraction wire being fixed to a lower part of the body of the T, wherein at least the body of the T is made up of a fibre that releases an active substance, and wherein: the fibre constituting the body of the T presents a transverse channel on its upper part, the stem, with a section inferior to that of the fibre but superior to that of the channel, being insertable by force into said channel to form two equal arms on opposite sides of the body and wherein; the stem forming the arms presents a curved form so that a wedging force exercised by the body on the stem is such that the latter is held in the channel in the position where it has been introduced in the womb, that is to say a position where the arms are oriented downwards of the body, while it is allowed to pivot in the channel until the arms are oriented upwards of the body under the effect of constraint exercised on the arms at the time of the extraction from the womb by said extraction wire of the device.