| abstract |
FIELD: medicine. n SUBSTANCE: group of inventions refers to medicine. An intrauterine contraceptive device comprises a bearing body and an active metal alloy of formula Zn x Cu y Mn z Au k (I) or Zn x Cu y Mn z Ag k (II) in which x+y+z+k=100 wt %, x varies within the range approximately 18 to 30 wt %, z varies within the range approximately 0.5 to 3 wt %, and k varies within the range approximately 3 to 12 wt %, and y makes the rest. n EFFECT: group of inventions provides shorter and less intensive menstruation, and reduces a risk of abdominal contamination. n 9 cl, 1 dwg |