Stent with spiral side-branch
First Claim
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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 from 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 alternating struts and turns, each strut having curvature along its length, the curvature of each strut being concave with respect to a center point of the inner side branch cell.
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Abstract
In at least one 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 having an inner side branch cell that is shaped differently from other cells of the stent. The side branch structure further comprises a serpentine ring extending around the inner side branch cell, the serpentine ring having alternating struts and turns. Each strut includes curvature along its length and is oriented with the curvature being concave with respect to a center point of the inner side branch cell.
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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 from 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 alternating struts and turns, each strut having curvature along its length, the curvature of each strut being concave with respect to a center point of the inner side branch cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12)
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9. A stent comprising:
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a plurality of interconnected expandable framework members and a side branch structure;
the 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 serpentine ring and a plurality of side branch connectors;
the serpentine ring comprising alternating struts and turns, each strut being concave with respect to a center point of the inner side branch cell;
each side branch connector connecting between a turn of the serpentine ring and at least one expandable framework member. - View Dependent Claims (10, 11, 13, 14)
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15. A stent comprising:
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a first end region, a second end region and a central region, each region comprising a plurality of serpentine bands, the central region further comprising a side branch structure;
the side branch structure comprising a first parabolic support strut, a second parabolic support strut, a serpentine ring and a plurality of side branch connectors, the serpentine ring extending around a side branch center point, each parabolic support strut being concave with respect to the side branch center point;
at least one serpentine band in the central region connected at both ends to the first parabolic support strut;
at least one serpentine band in the central region connected at both ends to the second parabolic support strut;
at least one side branch connector connecting between the serpentine ring and the first parabolic support strut, and at least one side branch connector connecting between the serpentine ring and the second parabolic support strut. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification