Single-piece endoprosthesis with high expansion ratios and atraumatic ends
First Claim
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1. A prosthesis, comprising:
- a plurality of variable width beams each having a length, a circumferential width which varies along the length of the beam and a radial thickness;
a plurality of uniform width beams each having a length, a circumferential width which is substantially the same along the length of the beam and a radial thickness, wherein the plurality of variable width beams and uniform width beams cooperate to form a structural body having a first end and a second end which defines a longitudinal axis, the structural body having a collapsed position and an expanded position; and
a plurality of connecting junctions, each connecting junction connecting an end of a uniform width beam to the end of a variable width beam such that the uniform width beam is located laterally adjacent along the longitudinal axis to the variable width beam to which it connected, wherein the variable width beams and uniform width beams have substantially the same radial thickness and the radial thickness is greater than the largest circumferential width of either the variable width beams or the uniform width beams.
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Abstract
A new endoluminal prosthesis for use in sealing a vascular graft to corporeal lumen provides for a flattened bulbous tail at the end of each cell of the prosthesis. The flattened bulbous tails reduce the amount of wear between the prosthesis and the softer material of the vascular grafts or corporeal lumen walls. A method of manufacturing a stent from a flat sheet of material is also included.
75 Citations
24 Claims
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1. A prosthesis, comprising:
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a plurality of variable width beams each having a length, a circumferential width which varies along the length of the beam and a radial thickness; a plurality of uniform width beams each having a length, a circumferential width which is substantially the same along the length of the beam and a radial thickness, wherein the plurality of variable width beams and uniform width beams cooperate to form a structural body having a first end and a second end which defines a longitudinal axis, the structural body having a collapsed position and an expanded position; and a plurality of connecting junctions, each connecting junction connecting an end of a uniform width beam to the end of a variable width beam such that the uniform width beam is located laterally adjacent along the longitudinal axis to the variable width beam to which it connected, wherein the variable width beams and uniform width beams have substantially the same radial thickness and the radial thickness is greater than the largest circumferential width of either the variable width beams or the uniform width beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A prosthesis, comprising:
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a plurality of variable width beams, each variable width beam having a first end and a second end defining a length therebetween, a circumferential width which varies along the length of the beam and a radial thickness; a plurality of uniform width beams, each uniform width beam having a first end and a second end defining a length therebetween, a circumferential width which is substantially the same along the length of the beam and a radial thickness, wherein the plurality of variable width beams and uniform width beams cooperate to form a structural body having a first end and a second end, the structural body having a collapsed position and an expanded position, the first end of each uniform width beam being attached to the first end of a variable width beam at a first connecting junction, the first connecting junctions forming the first end of the structural body and the second end of each uniform width beam being attached to the first end of a variable width beam at a second connecting junction, the second connecting junctions forming the second end of the structural body. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification