Polymer coated guidewire
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United States of America Patent
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Feb 24, 2009
Grant Date -
Jun 19, 2008
app pub date -
Jul 31, 2003
filing date -
Jun 4, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal portion of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that is configured to produce a linear change in stiffness of the core over a longitudinal portion of the device. An embodiment has a plurality of radiopaque elements that may be intermittent, continuous or in the form of a helical ribbon for scaled measurement of intracorporeal structure under fluoroscopic imaging. Another embodiment has at least one layer of polymer over the distal end of the device.
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