Process for providing composite radiopaque intracorporeal product
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United States of America Patent
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Nov 20, 2007
Grant Date -
Jul 1, 2004
app pub date -
Dec 11, 2003
filing date -
Jun 17, 1998
priority date (Note) -
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Abstract
The invention is directed to a guidewire having a distal flexible member, such as a helical coil, which is formed with at least one highly radiopaque component and at least one high strength component. In a presently preferred embodiment, the highly radiopaque component is at least 10% and less than about 60% of the transverse cross-section of the flexible member, preferably at least 20% but less than 40%. The highly radiopaque component may be formed of radiopaque material such as platinum, gold, iridium and the like and the high strength component may be formed of a material such as tantalum, stainless steel, NiTi alloys, Co--Cr--Mo alloys and the like.
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