Stent designs for use in peripheral vessels
First Claim
1. A longitudinally flexible stent for implanting in a small body lumen and expandable from a contracted condition to an expanded condition, comprising:
- a plurality of adjacent cylindrical elements, each cylindrical element having a circumference extending about a longitudinal stent axis and being substantially independently expandable in the radial direction, wherein the plurality of adjacent cylindrical elements are arranged in alignment along the longitudinal stent axis and form a generally serpentine wave pattern transverse to the longitudinal axis containing a plurality of alternating valley portions and peak portions, the valley portions including alternating double curved portions and U-shaped portions; and
a plurality of interconnecting members extending between the adjacent cylindrical elements and connecting the adjacent cylindrical elements to one another, interconnecting members being connected to the U-shaped portions to connect a cylindrical element to an adjacent cylindrical element and interconnecting members being connected to the double-curved portions to connect the cylindrical element to an adjacent cylindrical element.
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Accused Products
Abstract
Stent designs for use in peripheral vessels, such as the carotid arteries, are disclosed. The stents consist of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so that the stent is flexible in a longitudinal direction. The cylindrical elements are generally serpentine wave pattern transverse to the longitudinal axis between alternating valley portion and peak portions, the valley portion including alternating double-curved portions and U-shaped portions. The interconnecting members are attached to the double-curved portions to connect a cylindrical element to an adjacent cylindrical element and interconnecting members are attached to the U-shaped portions to connect the cylindrical element to the other adjacent cylindrical element. The designs include an eight crown and six crown stent which exhibit flexibility and sufficient radial strength to support the vessel.
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Citations
32 Claims
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1. A longitudinally flexible stent for implanting in a small body lumen and expandable from a contracted condition to an expanded condition, comprising:
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a plurality of adjacent cylindrical elements, each cylindrical element having a circumference extending about a longitudinal stent axis and being substantially independently expandable in the radial direction, wherein the plurality of adjacent cylindrical elements are arranged in alignment along the longitudinal stent axis and form a generally serpentine wave pattern transverse to the longitudinal axis containing a plurality of alternating valley portions and peak portions, the valley portions including alternating double curved portions and U-shaped portions; and
a plurality of interconnecting members extending between the adjacent cylindrical elements and connecting the adjacent cylindrical elements to one another, interconnecting members being connected to the U-shaped portions to connect a cylindrical element to an adjacent cylindrical element and interconnecting members being connected to the double-curved portions to connect the cylindrical element to an adjacent cylindrical element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A longitudinally flexible stent for implanting in a small body lumen and expandable from a contracted condition to an expanded condition, comprising:
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a plurality of adjacent cylindrical elements, each cylindrical element having a circumference extending about a longitudinal stent axis and being substantially independently expandable in the radial direction, wherein the plurality of adjacent cylindrical elements are arranged in alignment along the longitudinal stent axis and form a generally serpentine wave pattern transverse to the longitudinal axis containing a plurality of alternating valley portions and peak portions, the valley portions including alternating double curved portions and U-shaped portions; and
a plurality of interconnecting members extending between the adjacent cylindrical elements and connecting the adjacent cylindrical elements to one another, wherein interconnecting members are connected to the double-curved portion of each cylindrical element to connect the cylindrical elements together and a pair of peak portions are disposed between double-curved portions on each cylindrical element. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification