Removable embolus blood clot filter
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United States of America Patent
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Jun 28, 2011
Issued Date -
N/A
app pub date -
May 9, 2006
filing date -
May 12, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A removable blood clot filter includes a number of locator members and anchor members disposed radially and extending angularly downward from a hub. The locator members include a number of linear portions having distinct axes configured to place a tip portion approximately parallel to the walls of a blood vessel when implanted and to apply sufficient force to the vessel walls to position the filter near the vessel centerline. The anchor members each include a hook configured to penetrate the vessel wall to prevent longitudinal movement due to blood flow. The hooks may have a cross section sized to allow for a larger radius of curvature under strain so that the filter can be removed without damaging the vessel wall.
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