Medical prosthesis
First Claim
Patent Images
1. A self-expanding stent comprising:
- a body with a body wall structure having a pattern of cells defined by a plurality of elongate strands extending to regions of intersection, the body having a first compressed position and a second expanded position, each cell having a side that extends in both a circumferential direction and an axial direction at an angle relative to a longitudinal axis of the stent in the expanded position; and
interlocking joints at said regions of intersection formed by a portion of at least one of said strands being helically wrapped about a portion of another strand to form helically wrapped portions, each interlocking joint having a joint axis, which is oriented circumferentially with respect to said body.
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Abstract
An implantable self-expanding medical prosthesis. The prosthesis has a tube-form body with a body wall structure having a geometric pattern of cells defined by a series of elongate strands extending to regions of intersection and interlocking joints at said regions of intersection formed by a portion of at least one of said strands being helically wrapped about a portion of another.
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Citations
46 Claims
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1. A self-expanding stent comprising:
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a body with a body wall structure having a pattern of cells defined by a plurality of elongate strands extending to regions of intersection, the body having a first compressed position and a second expanded position, each cell having a side that extends in both a circumferential direction and an axial direction at an angle relative to a longitudinal axis of the stent in the expanded position; and
interlocking joints at said regions of intersection formed by a portion of at least one of said strands being helically wrapped about a portion of another strand to form helically wrapped portions, each interlocking joint having a joint axis, which is oriented circumferentially with respect to said body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for treating an occluded body lumen, comprising:
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a prosthesis having a tube-form body with a body wall structure having a pattern of cells defined by a series of elongate strands extending to regions of intersection, and interlocking joints at said regions of intersection formed by portions of said strands that are helically wrapped about each other to form helically wrapped portions, each interlocking joint having an axis which is oriented circumferentially with respect to said body, each cell having a side that extends at an angle relative to a longitudinal axis of the body in both a circumferential direction and an axial direction about the body of the prosthesis; and
a delivery catheter constructed to receive said prosthesis in a compressed state for delivery through the body to a desired site in said body lumen, the prosthesis having a length and a diameter in the compressed state, and to allow expansion of said prosthesis to a larger diameter and a smaller length for engaging said body lumen at said desired site. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. An implantable medical prosthesis comprising:
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a tube-form body with a body wall structure having a pattern of cells defined by a plurality of elongate strands extending to regions of intersection, the tube-form body having a compressed state and an expanded state; and
interlocking joints formed by a portion of at least one of said strands being helically wrapped about a portion of another said strand, each interlocking joint having an axis extending through the helically wrapped portion, said axis oriented circumferentially with respect to said body, each strand in a cell having a strand angle relative to an axis of a joint in the cell in the range of 35°
-55°
when the tube-form body is in the expanded state.- View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A self-expanding stent comprising:
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a body with a body wall structure having a pattern of cells defined by a plurality of elongate strands extending to regions of intersection, the body having a first compressed position and a second expanded position, each cell having a first cell side with a first length and a second length different than the first length; and
interlocking joints at said regions of intersection formed by a portion of at least one of said strands being helically wrapped about a portion of another said strand to form helically wrapped portions, each interlocking joint having an axis which is oriented circumferentially with respect to said body. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification