Expandable covered stent with wide range of wrinkle-free deployed diameters
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United States of America Patent
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Apr 23, 2013
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N/A
app pub date -
Apr 21, 2006
filing date -
Apr 21, 2006
priority date (Note) -
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Abstract
An improved stent-graft device is provided that delivers a smooth flow surface over a range of operative expanded diameters by applying a unique cover material to the stent through a technique that allows the cover to become wrinkle-free prior to reaching fully deployed diameter. The unique cover material then allows the device to continue to expand to a fully deployed diameter while maintaining a smooth and coherent flow surface throughout this additional expansion. Employed with a self-expanding device, when the device is unconstrained from a compacted diameter it will self-expand up to a fully deployed diameter with the graft being substantially wrinkle-free over diameters ranging from about 30-50% to 100% of the fully deployed diameter.
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