Cannula cut stent with closed end cell geometry
First Claim
Patent Images
1. An intraluminal support device for implantation into a lumen of a body vessel, the intraluminal support device comprising:
- a tubular body having a first end extending to a second end and defining a longitudinal axis, the tubular body comprising a plurality of inner rings each comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, the plurality of inner rings being disposed axially along the longitudinal axis, the tubular body being radially expandable from a compressed state to an expanded state; and
an end cell disposed at at least one of the first end and the second end, the end cell comprising a penultimate ring and an ultimate ring, each of the penultimate ring and the ultimate ring comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, each peak of the ultimate ring having a width less than that of a peak of an inner ring and being connected at an inner edge thereof to a peak of the penultimate ring at an outer edge thereof by a connector segment, andeach valley of the ultimate ring being connected at an outer edge thereof to a valley of the penultimate ring at an inner edge thereof by a connector segment.
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Abstract
Disclosed herein is an intraluminal support device including a closed cell design on at least one end of the device. In such a device, the closed cell structure is formed by connecting all peaks of an ultimate ring to all peaks of a penultimate ring, and all valleys of the ultimate ring to all valleys of the ultimate ring. The support device expands evenly due to this structure.
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Citations
20 Claims
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1. An intraluminal support device for implantation into a lumen of a body vessel, the intraluminal support device comprising:
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a tubular body having a first end extending to a second end and defining a longitudinal axis, the tubular body comprising a plurality of inner rings each comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, the plurality of inner rings being disposed axially along the longitudinal axis, the tubular body being radially expandable from a compressed state to an expanded state; and an end cell disposed at at least one of the first end and the second end, the end cell comprising a penultimate ring and an ultimate ring, each of the penultimate ring and the ultimate ring comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, each peak of the ultimate ring having a width less than that of a peak of an inner ring and being connected at an inner edge thereof to a peak of the penultimate ring at an outer edge thereof by a connector segment, and each valley of the ultimate ring being connected at an outer edge thereof to a valley of the penultimate ring at an inner edge thereof by a connector segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An intraluminal support device for implantation into a lumen of a body vessel, the intraluminal support device comprising:
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a tubular body having a first end extending to a second end and defining a longitudinal axis, the tubular body comprising a plurality of inner rings each comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, each peak of the plurality of inner rings having a first width, the plurality of inner rings being disposed axially along the longitudinal axis, the tubular body being radially expandable from a compressed state to an expanded state; and an end cell disposed at at least one of the first end and the second end, the end cell comprising a penultimate ring and an ultimate ring, each of the penultimate ring and the ultimate ring comprising a plurality of struts and bend arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, each peak of the ultimate ring being connected at an inner edge thereof to a peak of the penultimate ring at an outer edge thereof by a connector segment, each peak of the ultimate ring having a second width less than the first width, each valley of the ultimate ring being connected at an outer edge thereof to a valley of the penultimate ring at an inner edge thereof by a connector segment, each connector segment being substantially parallel to the longitudinal axis in the compressed state, wherein the intraluminal support device is self-expanding. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An intraluminal support device for implantation into a lumen of a body vessel, the intraluminal support device comprising:
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a tubular body having a first end extending to a second end and defining a longitudinal axis, the tubular body comprising a plurality of inner rings each comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, the plurality of inner rings being disposed axially along the longitudinal axis, the tubular body being radially expandable from a compressed state to an expanded state; and an end cell disposed at at least one of the first end and the second end, the end cell comprising a penultimate ring and an ultimate ring, each of the penultimate ring and the ultimate ring comprising a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks and a plurality of valleys, each of the plurality of struts of the ultimate ring comprising a taper proximate the peaks, each peak of the ultimate ring having a width less than that of a peak of an inner ring and being connected at an inner edge thereof to a peak of the penultimate ring at an outer edge thereof by a connector segment, and each valley of the ultimate ring being connected at an outer edge thereof to a valley of the penultimate ring at an inner edge thereof by a connector segment.
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Specification