发明名称 Streamlined T-shaped intrauterine device
摘要 An intrauterine contraceptive device of a Tatum T shape which carries copper sleeves on its arms wherein the arm portion carrying the sleeve is of a smaller diameter than the remaining portion of the arm. This arrangement allows for minimization or elimination of an exposed and elevated copper sleeve edge which may abrade the uterus on insertion and/or removal.
申请公布号 US4562835(A) 申请公布日期 1986.01.07
申请号 US19840573080 申请日期 1984.01.23
申请人 ORTHO PHARMACEUTICAL (CANADA) LTD. 发明人 ANDERSON, GREGORY K.
分类号 A61F6/14;(IPC1-7):A61F5/46 主分类号 A61F6/14
代理机构 代理人
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