| 摘要 |
A system allowing the exact knowledge of the position taken in the uterus of all the types of loops existing actually on the market. It comprises a marking device consisting in a centimetric coloring of the thread or threads which are affixed on all the types of loops. The invention can be utilised at the time when the loop is placed in position, to verify its location after its introduction, to cut the thread at the proper length with certitude and, at each of the periodic controls, to know exactly the positionning of the loop in the uterus.
|
