Polymer coated guidewire
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United States of America Patent
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Jan 6, 2004
Issued Date -
N/A
app pub date -
Nov 16, 1999
filing date -
Dec 1, 1993
priority date (Note) -
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status (Latency Note)
Importance
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 flouroscopic imaging. Another embodiment has at least one layer of polymer over the distal end of the device.
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