INTRAUTERINE CONTRACEPTIVE DEVICE Russian patent published in 2012 - IPC A61F6/14 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine. An intrauterine contraceptive device comprises a bearing body and an active metal alloy of formula Zn_xCu_yMn_zAu_k (I) or Zn_xCu_yMn_zAg_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.

EFFECT: group of inventions provides shorter and less intensive menstruation, and reduces a risk of abdominal contamination.

9 cl, 1 dwg