Endovascular stent with radiopaque spine
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United States of America Patent
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Jul 1, 2003
Grant Date -
N/A
app pub date -
Sep 15, 1999
filing date -
Sep 15, 1999
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Abstract
A stent is formed from a series of radially aligned expandable rings. The rings are formed of a radio-transparent material that are linked by a radiopaque spine. A thin but very bright fluoroscopic image is thereby created, without compromising the strength of the stent. The small cross-section of the illuminated spine also serves to minimize interference with the image of the lesion when the stent is being positioned thereover. In the event galvanic corrosion causes the radiopaque spine to become detached from the radio-transparent ring elements, their expanded state precludes their shifting within the lumen. While the sandwiched position of the spine against the lumen wall prevents it from shifting as well.
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