Stent design with struts of various angles and stiffness
First Claim
1. A stent having a proximal end, a distal end, and a longitudinal axis extending through the proximal and distal ends, the stent further comprising:
- a plurality of interconnected serpentine bands, each serpentine band axially spaced from an immediately adjacent serpentine band, wherein each serpentine band comprises a plurality of struts, each strut of the serpentine band connected to a circumferentially adjacent strut in the serpentine band to form a juncture, wherein each juncture forms a peak and a valley, wherein the junctures include junctures which form peak connector nodes and junctures which form valley connector nodes,wherein each serpentine band is axially connected to the immediately adjacent serpentine band by at least one interconnecting member, each interconnecting member directly connects one peak connector node of one serpentine band to one valley connector node of the immediately adjacent serpentine band, wherein the valley connector node has a length in the axial direction between the peak and the valley, and the peak connector node has a length in the axial direction between the peak and the valley, wherein the length of the valley connector node is greater than the length of the peak connector node.
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Accused Products
Abstract
The present invention is directed to stent that has a plurality of axially spaced serpentine bands. Each serpentine band comprises a plurality of struts, wherein adjacent struts are connected to each other forming a plurality of peaks and valleys. The plurality of struts comprise a plurality of adjacent pairs of struts, wherein each adjacent pair of struts comprises a first strut and a second strut and wherein the first and second struts have a first end, a second end and a length and a plurality of interconnecting struts axially connect the serpentine bands. The stent further includes a plurality of connector nodes, wherein a plurality of first and second struts that are associated with a connector node have a greater stiffness than a plurality of struts that are not associated with a connector node.
32 Citations
30 Claims
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1. A stent having a proximal end, a distal end, and a longitudinal axis extending through the proximal and distal ends, the stent further comprising:
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a plurality of interconnected serpentine bands, each serpentine band axially spaced from an immediately adjacent serpentine band, wherein each serpentine band comprises a plurality of struts, each strut of the serpentine band connected to a circumferentially adjacent strut in the serpentine band to form a juncture, wherein each juncture forms a peak and a valley, wherein the junctures include junctures which form peak connector nodes and junctures which form valley connector nodes, wherein each serpentine band is axially connected to the immediately adjacent serpentine band by at least one interconnecting member, each interconnecting member directly connects one peak connector node of one serpentine band to one valley connector node of the immediately adjacent serpentine band, wherein the valley connector node has a length in the axial direction between the peak and the valley, and the peak connector node has a length in the axial direction between the peak and the valley, wherein the length of the valley connector node is greater than the length of the peak connector node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification