Endovascular guidewire filter and methods of use
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United States of America Patent
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-
Aug 30, 2005
Grant Date -
Jul 18, 2002
app pub date -
Jan 4, 2002
filing date -
Jan 16, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A filter device for temporary placement of a filter in an artery or vein is disclosed. The devices include (1) an elongate tubular member having a single or double side-wire loop, (2) an elongate member having a filter bonded to a circular rim joined by a plurality of tethers and an independently moveable tether, and (3) an elongate member having a parachute filter joined by a plurality of flexible struts. The filter conforms to the interior of a vessel wall when expanded and contracts to a consistent diameter without bunching when stowed. The filter devices may act as guidewires for guiding a therapeutic catheter to a region of interest within a vessel. Methods of using the filter device to entrap and remove embolic material from a vessel during endovascular procedures are also disclosed.
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