Contraceptive transcervical fallopian tube occlusion devices and methods
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United States of America Patent
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Apr 12, 2011
Grant Date -
Jul 1, 2004
app pub date -
Aug 13, 2003
filing date -
Jun 7, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
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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Family
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