Contraceptive transcervical fallopian tube occlusion devices and their delivery
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United States of America Patent
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Nov 29, 2011
Grant Date -
Mar 1, 2007
app pub date -
Jul 31, 2006
filing date -
Jun 7, 1995
priority date (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 imposing a secondary shape on a resilient structure, 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. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.
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