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United States of America Patent
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Jan 29, 2013
Grant Date -
Aug 12, 2004
app pub date -
Feb 7, 2003
filing date -
Feb 7, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Intravascular filtering devices for placement within a blood vessel are disclosed. An intravascular filter in accordance with the present invention may include a plurality of elongated filter legs biased to radially expand from a collapsed position to a conical-shaped position when deployed in a blood vessel. Each of the filter legs may include a hook region configured to engage the vessel wall. The filter legs may vary in length and/or cross-sectional diameter. In certain embodiments, the dimensions and/or orientation of the hook regions can be configured to allow the filter device to be collapsed into a relatively small introducer catheter or sheath.
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