Bifurcated stent
First Claim
1. A stent comprising:
- a plurality of interconnected framework members defining a plurality of cells, a portion of the interconnected framework members comprising a side branch structure defining an inner side branch cell, the inner side branch cell being shaped differently than other cells of the stent;
the side branch structure comprising;
a first serpentine ring extending around and defining the inner side branch cell, the first serpentine ring comprising alternating inner turns and outer turns, the outer turns aligned upon a first reference circle;
a second serpentine ring circumferentially surrounding the first serpentine ring, the second serpentine ring comprising alternating inner turns and outer turns, the inner turns aligned upon a second reference circle; and
a plurality of inner side branch connectors, each inner side branch connector spanning between the first serpentine ring and the second serpentine ring in a side branch radial direction;
wherein the first reference circle has a greater diameter than the second reference circle.
1 Assignment
0 Petitions
Accused Products
Abstract
In at least one other embodiment, a stent comprises a plurality of interconnected framework members defining a plurality of cells. A portion of the interconnected framework members comprise a side branch structure defining an inner side branch cell that is shaped differently from other cells of the stent. The side branch structure comprises a first serpentine ring, a second serpentine ring and a plurality of side branch connectors. The first serpentine ring extends around the inner side branch cell and comprises alternating inner turns and outer turns. The second serpentine ring extends around the first serpentine ring and comprises alternating inner turns and outer turns. The second serpentine ring has the same number of outer turns as the first serpentine ring. Each side branch connector spans between the first serpentine ring and the second serpentine ring in a side branch radial direction.
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Citations
20 Claims
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1. A stent comprising:
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a plurality of interconnected framework members defining a plurality of cells, a portion of the interconnected framework members comprising a side branch structure defining an inner side branch cell, the inner side branch cell being shaped differently than other cells of the stent; the side branch structure comprising; a first serpentine ring extending around and defining the inner side branch cell, the first serpentine ring comprising alternating inner turns and outer turns, the outer turns aligned upon a first reference circle; a second serpentine ring circumferentially surrounding the first serpentine ring, the second serpentine ring comprising alternating inner turns and outer turns, the inner turns aligned upon a second reference circle; and a plurality of inner side branch connectors, each inner side branch connector spanning between the first serpentine ring and the second serpentine ring in a side branch radial direction; wherein the first reference circle has a greater diameter than the second reference circle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stent comprising:
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a plurality of interconnected framework members defining a plurality of cells, a portion of the interconnected framework members comprising a side branch structure defining an inner side branch cell, the inner side branch cell being shaped differently than other cells of the stent; the side branch structure comprising; a first serpentine ring extending around and defining the inner side branch cell, the first serpentine ring comprising alternating inner turns and outer turns; a second serpentine ring circumferentially surrounding the first serpentine ring, the second serpentine ring comprising alternating inner turns and outer turns, the second serpentine ring having the same number of outer turns as the first serpentine ring; and a plurality of side branch connectors, each side branch connector spanning between the first serpentine ring and the second serpentine ring in a side branch radial direction. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A stent comprising:
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a plurality of interconnected framework members defining a plurality of cells, a portion of the interconnected framework members comprising a side branch structure defining an inner side branch cell, the inner side branch cell being shaped differently than other cells of the stent; the side branch structure comprising; a first serpentine ring extending around and defining the inner side branch cell, the first serpentine ring comprising alternating inner turns and outer turns, the outer turns aligned upon a first reference circle; a second serpentine ring circumferentially surrounding the first serpentine ring, the second serpentine ring comprising alternating inner turns and outer turns, the inner turns aligned upon a second reference circle, the outer turns aligned upon a third reference circle; and a third serpentine ring surrounding the second serpentine ring, the third serpentine ring comprising alternating inner turns and outer turns, the inner turns aligned upon a fourth reference circle; wherein the first reference circle has a greater diameter than the second reference circle, and the third reference circle has a greater diameter than the fourth reference circle. - View Dependent Claims (19, 20)
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Specification