Stent for positioning at junction of bifurcated blood vessel and method of making
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United States of America Patent
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Apr 13, 1999
Grant Date -
N/A
app pub date -
Oct 14, 1997
filing date -
Oct 14, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A stent has a generally cylindrical shape having a series of slots or other surface discontinuities facilitating adherence to the inner walls of a blood vessel. In one embodiment, one end of the stent has a terminus that is tapered at a non-orthogonal angle with respect to the axis of elongation of the stent. In other embodiments, both ends are angled non-orthogonally with respect to the longitudinal axis of the stent. The particular angle that each end surface of the stent makes with the longitudinal axis of the stent may be varied, in each case, to accommodate to bifurcated blood vessels of varying sizes, shapes and configurations. Use of stents in accordance with the teachings of the present invention precludes wall portions of a stent from protruding into a passage of a blood vessel in a manner that would cause restricted flow through the blood vessel. The method of making the stent in accordance with the teachings of the present invention is also disclosed.
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