发明名称 |
Contraceptive transcervical fallopian tube occlusion devices and methods |
摘要 |
The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has a helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.
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申请公布号 |
US2002020417(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
US20010912067 |
申请日期 |
2001.07.23 |
申请人 |
NIKOLCHEV JULIAN N.;TON DAI T.;KHERA ASHISH;GURSKIS DONNELL W.;BACICH STEVEN |
发明人 |
NIKOLCHEV JULIAN N.;TON DAI T.;KHERA ASHISH;GURSKIS DONNELL W.;BACICH STEVEN |
分类号 |
A61F6/06;A61B17/12;A61F2/00;A61F6/18;A61F6/22;(IPC1-7):A61F6/06 |
主分类号 |
A61F6/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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