Removable vena cava filter with anchoring feature for reduced trauma
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United States of America Patent
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Jul 5, 2011
Grant Date -
Nov 10, 2005
app pub date -
Apr 18, 2005
filing date -
Apr 16, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of struts having first ends attached together along a longitudinal axis of the filter. Each strut has a body member extending from the first end along the longitudinal axis to an anchoring hook defining a strut axis. Each strut is configured to move along a strut path relative to the longitudinal axis between an expanded state for engaging with the blood vessel and a collapsed state for filter delivery or retrieval. Each anchoring hook has an angle of up to about 90 degrees relative to the strut axis.
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