Stent formed of half-round wire
First Claim
1. A vascular prosthesis stent, comprising:
- a continuous wire formed into an undulating wave pattern having a plurality of segments joined by a plurality of bends, said pattern being formed into a substantially tubularly-shaped body having a compressed and an expanded condition and a longitudinal axis, a plurality of bonded cells, each of the bonded cells having a plurality of sides and being formed from selected of said segments and said bends bonded together in abutting contact; and
the continuous wire having a substantially semi-circular side and a substantially planar side, whereby an axial length of said tubularly-shaped body remains substantially equivalent in the expanded and the compressed conditions.
1 Assignment
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Accused Products
Abstract
A vascular prosthesis stent provides an interior surface that reduces hemodynamic disturbances which interfere with blood flow through the stent and minimizes the reactive tissue response. More particularly, the vascular stent is constructed from a continuous wire that is half-round (i.e., semi-circular) in transverse cross-section. In a completed stent, the semi-circular wire profiles are all on the exterior of the stent body while the planar portions of the wire are all on the interior, with the result that the interior of the stent, comprised of the cross-sectional diameters of the wires, provides a generally smooth surface that minimizes blood flow turbulence, and minimizes the amount of tissue reaction necessary to incorporate the stent into the vessel wall.
497 Citations
16 Claims
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1. A vascular prosthesis stent, comprising:
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a continuous wire formed into an undulating wave pattern having a plurality of segments joined by a plurality of bends, said pattern being formed into a substantially tubularly-shaped body having a compressed and an expanded condition and a longitudinal axis, a plurality of bonded cells, each of the bonded cells having a plurality of sides and being formed from selected of said segments and said bends bonded together in abutting contact; and the continuous wire having a substantially semi-circular side and a substantially planar side, whereby an axial length of said tubularly-shaped body remains substantially equivalent in the expanded and the compressed conditions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vascular prosthesis stent, comprising:
a continuous wire formed into an undulating wave pattern and a substantially tubularly-shaped body with a longitudinal axis and two ends, selected portions of said continuous wire being bonded together in abutting contact, the body having a compressed condition and an expanded condition; and
the continuous wire being half-round in cross-sectional shape with a substantially semi-circular side and a substantially planar side, the semi-circular side of the wire being on an exterior of the stent body, the planar side of the wire being on an interior of the stent body, whereby an axial length of the tubularly-shaped body remains substantially equivalent in the compressed and the expanded conditions.- View Dependent Claims (13, 14, 15, 16)
Specification