| abstract |
An intrauterine contraceptive device comprising a carrier body (1) and an active metallic alloy (4), characterized in that the active metallic alloy is of the formula ZnxCuyMnzAuk (I) or ZnxCuyMnzAgk (II), wherein x+y+z+k = 100 weight %, x is in the range from approximately 18 to 30 weight %, z is in the range from approximately 0.5 to 3 weight %, and k is in the range from approximately 3 to 12 weight %, y being the balance. |