INTRAUTERUS CONTRACEPTIVE Russian patent published in 1994 - IPC

FIELD: medicine. SUBSTANCE: contraceptive is connectable with possibility of locking connection; its carrying rod has a spherical thickened portion in one end with a hole for securing a filament and has an inner portion of the locking connection on its other end. The above mentioned inner portion is in the form of mutually normal protruding spherical surfaces. An outer part of the locking connection, placed in zone of arm joining, is in the form of a variable cross section aperture, in which the carrying rod, supporting a metallic filament, wound on it, is axially placed. EFFECT: enhanced reliability. 1 cl, 1 dwg