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    Device for suppressing fertility
    1.
    发明授权
    Device for suppressing fertility 失效
    用于抑制肥胖的装置

    公开(公告)号：US3699951A

    公开(公告)日：1972-10-24

    申请号：US3699951D

    申请日：1970-01-19

    申请人： ALZA CORP

    发明人： ZAFFARONI ALEJANDRO

    IPC分类号： A61F6/14 ,  A61K9/00 ,  A41B3/12

    CPC分类号： A61K9/0039 ,  A61F6/14

    摘要： Fertility suppression in a female mammal is achieved with a device for insertion and retention in the uterus in the form of a flexible, resilient body of polymeric material having an elastic memory. The body has an ellipsoidal shape and a fluted surface. When inserted into the uterine cavity in a compacted state, the body assumes an ellipsoidal configuration. Preferably, the device contains an anti-fertility agent, most preferably progesterone, and is permeable to passage of the anti-fertility agent at a low rate. Upon insertion in the uterus, the device releases a fertility suppressing amount of the anti-fertility agent to the uterus.