| 摘要 |
An intrauterine contraceptive which prevents pregnancy comprises a shaped elastic body of a basic material filled, if necessary, with a metallic compound, which can be inserted in the uterus. The contraceptive is shaped like a double Y, the arms (2, 3, 6, 7) of which branch out from nodes (4, 8) at either end of its shaft (1). The arms (2, 3) forming the upper part of the Y branch out from the upper node (4) in the opposite direction to the shaft at an obtuse angle to each other and symmetrically to the longitudinal axis of the shaft (1) of the double Y. The arms (6, 7) which branch out from the lower node (8) of the shaft (1) are inclined to each other at an angle less than 180 DEG . All the arms (2, 3, 6, 7) have a terminal part (5) with a rounded surface at their outer ends, the diameter of said part being greater than the diameter of the arms. |
