Radially expansible vascular prosthesis having reversible and other locking structures
First Claim
Patent Images
1. A tubular prosthesis comprising:
- a radially expansible tubular body having a first end, a second end, and a lumen extending from the first end to the second end; and
circumferential structure on the tubular body, wherein said structure defines at least one fold line for eversion of the tubular prosthesis;
wherein the circumferential structure comprises a circumferential score line over the tubular body at at least some of the fold lines.
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Abstract
A tubular prosthesis is implanted at a target location within a body lumen by transluminally positioning the prosthesis and thereafter radially expanding the prosthesis to conform to an inner wall of the lumen. The prosthesis typically includes a braided tubular body and is typically provided with an everting or other structure for locking the prosthesis in its radially expanded configuration.
550 Citations
23 Claims
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1. A tubular prosthesis comprising:
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a radially expansible tubular body having a first end, a second end, and a lumen extending from the first end to the second end; and circumferential structure on the tubular body, wherein said structure defines at least one fold line for eversion of the tubular prosthesis; wherein the circumferential structure comprises a circumferential score line over the tubular body at at least some of the fold lines. - View Dependent Claims (2, 7, 8, 9, 10, 11, 12)
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3. A tubular prosthesis comprising:
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a radially expansible tubular body having a first end, a second end, and a lumen extending from the first end to the second end, the tubular body having a braided structure; and circumferential structure on the tubular body, wherein said structure defines at least one fold line for eversion of the tubular prosthesis; wherein the circumferential structure comprises a circumferential score line over the tubular body at at least some of the fold lines; and wherein the tubular body comprises a plurality of helically interwoven elements wherein the helical pitch of the elements changes as the body is lengthened and shortened to cause a corresponding decrease or increase in diameter. - View Dependent Claims (4, 5, 6)
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13. A tubular prosthesis comprising:
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a radially expansible braided tubular body having a first end, a second end, and a lumen extending from the first end to the second end, wherein axial shortening of the tubular body results in radial expansion; and means on the tubular body for fixing the radially expanded configuration of the tubular body, the means including diameter locking means comprising circumferential structure on the tubular body which defines at least one fold line for eversion of the tubular body to lock the diameter of the tubular body in its radially expanded configuration. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A tubular prosthesis comprising:
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a braided tubular body which can be axially shortened to effect radial expansion from a first diameter to a second diameter, said tubular body having a first end, a second end, and a lumen extending from the first end to the second end, wherein the braid characteristics are such that axial shortening to said second diameter results in a decrease in porosity of the body to a final value below about 2000 ml/min/cm2; means on the tubular body for fixing the radially expanded configuration of the tubular body, the means for fixing the radially expanded configuration comprising means for locking the diameter of the braided tubular body in its radially expanded configuration; wherein the diameter locking means comprises circumferential structure which defines at least one fold line for eversion of the tubular prosthesis; and wherein the circumferential structure defines at least a first fold line spaced-inward from the first end and a second fold line spaced-inward from the second end, wherein both ends of the tubular body may be everted along the fold lines to radially reinforce each end. - View Dependent Claims (20, 21, 22, 23)
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Specification