Tubular medical prosthesis for use in a body lumen
First Claim
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1. An implantable medical prosthesis, comprising:
- a tube-form body with a body wall structure having a geometric pattern of cells defined by a plurality of elongate strands extending to regions of intersection, andinterlocking joints at said regions of intersection formed by a portion of at least one of said strands being helically wrapped through an angle of at least 360°
about a portion of another said strand to form helically wrapped portions each having an axis, each strand in a cell having a strand angle relative to an axis of a joint in the cell that decreases upon circumferential expansion of the body, said interlocking joints constructed such that the axes of the helically wrapped portions are oriented substantially circumferentially with respect to said tube-form 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
41 Claims
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1. An implantable medical prosthesis, comprising:
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a tube-form body with a body wall structure having a geometric pattern of cells defined by a plurality 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 through an angle of at least 360°
about a portion of another said strand to form helically wrapped portions each having an axis, each strand in a cell having a strand angle relative to an axis of a joint in the cell that decreases upon circumferential expansion of the body, said interlocking joints constructed such that the axes of the helically wrapped portions are oriented substantially circumferentially with respect to said tube-form body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. 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 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 portions of said strands that are helically wrapped about each other through an angle of at least 360°
to form helically wrapped portions each having an axis, said interlocking joints constructed such that the axes of the helically wrapped portions are oriented substantially circumferentially with respect to said tube-form body, anda delivery catheter constructed to receive said prosthesis in a compact state for delivery through the body to a desired site in said body lumen, the prosthesis having a length and a diameter in the compact 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 (19, 20, 21, 22, 23)
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24. A method for treating a body lumen, comprising:
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providing a prosthesis having a tube-form body with a body wall structure having a body length and 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 portions of said strands that are helically wrapped about each other through an angle of at least 360°
to form helically wrapped portions each having an axis, said interlocking joints constructed such that the axes of the helically wrapped portions are oriented substantially circumferentially with respect to said tube-form body,providing a delivery catheter constructed to receive said prosthesis in a compact state for delivery to a desired site in said body lumen and to allow expansion of said prosthesis to a larger diameter for engaging said body lumen at said desired site, delivering said prosthesis to said site on said catheter, and releasing said prosthesis at said site such that the body length is reduced upon expansion of the diameter of the prosthesis. - View Dependent Claims (25, 26, 27, 28)
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29. An implantable medical prosthesis comprising:
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a tube-form body with a body wall structure having a geometric pattern of cells defined by a plurality of elongate strands extending to regions of intersection, the tube-form body having a compact state and an expanded state; and interlocking joints formed by a portion of at least one of said strands being helically wrapped through an angle of at least 360°
about a portion of another said strand, each interlocking joint having an axis extending through the helically wrapped portion, 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, said interlocking joints constructed such that the axes of the helically wrapped portions of the interlocking joints are oriented substantially circumferentially with respect to said tube-form body. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method for inserting a prosthesis in the biliary tract comprising:
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providing a prosthesis having a tube-form body with a body wall structure having a body length and 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 portions of said strands that are helically wrapped about each other through an angle of at least 360°
to form helically wrapped portions are oriented substantially circumferentially with respect to said tube-form body;providing a delivery catheter constructed to receive said prosthesis in a compact state for deliver to a desired site in said biliary tract and to allow expansion of said prosthesis to a larger diameter for engaging said biliary tract at said desired site, delivering said prosthesis at said sire such that the body length is reduced upon expansion of the diameter of the prosthesis such that the prosthesis extends along a portion of the biliary tract. - View Dependent Claims (41)
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Specification