Stent with protruding branch portion for bifurcated vessels
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 having a side branch center point, 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 the inner side branch cell, the first serpentine ring comprising a plurality of curved portions including convex curved portions that are convex with respect to the side branch center point, and concave curved portions that are concave with respect to the side branch center point, the convex curved portions including first convex curved portions and second convex curved portions, the second convex curved portions located farther away from a side branch center point than the first convex curved portions;
a second serpentine ring extending around the first serpentine ring; and
a plurality of side branch connectors, each side branch connector extending between a concave curved portion of the first serpentine ring and the second serpentine ring.
1 Assignment
0 Petitions
Accused Products
Abstract
In at least one embodiment, a stent comprises a plurality of interconnected framework members defining a plurality of cells. A side branch structure comprises a first serpentine ring extending around an inner side branch cell, a second serpentine ring extending around the first serpentine ring and a plurality of side branch connectors. The first serpentine ring comprises a plurality of curved portions including convex curved portions and concave curved portions. The convex curved portions include first convex curved portions and second convex curved portions, wherein the second convex curved portions are located farther away from a side branch center point than the first convex curved portions. Each side branch connector extends between a concave curved portion of the first serpentine ring and a portion of the second serpentine ring.
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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 having a side branch center point, 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 the inner side branch cell, the first serpentine ring comprising a plurality of curved portions including convex curved portions that are convex with respect to the side branch center point, and concave curved portions that are concave with respect to the side branch center point, the convex curved portions including first convex curved portions and second convex curved portions, the second convex curved portions located farther away from a side branch center point than the first convex curved portions;
a second serpentine ring extending around the first serpentine ring; and
a plurality of side branch connectors, each side branch connector extending between a concave curved portion of the first serpentine ring and the second serpentine ring. - View Dependent Claims (2, 3, 4, 5, 6)
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7. 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 having a side branch center point, 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 the inner side branch cell, the first serpentine ring comprising a plurality of curved portions including convex curved portions that are convex with respect to the side branch center point, and concave curved portions that are concave with respect to the side branch center point, the convex curved portions including first convex curved portions and second convex curved portions, the second convex curved portions located farther away from a side branch center point than the first convex curved portions;
a second serpentine ring extending around the first serpentine ring; and
a plurality of side branch connectors extending between the first serpentine ring and the second serpentine ring, at least one side branch connector connected to a second convex curved portion. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification