Method for prosthetic repair of body passages
First Claim
1. A method for securing a prosthetic device in a body passage comprising:
- folding a resilient, deformable annular ring, having radii, to assume a first configuration having a cross-sectional area smaller than the cross-sectional area of an undeformed ring, said ring comprising a bundle of closely associated, concentric, radially overlapping windings formed of a strand of wire and overlapping in the directions of said radii, the diameter of said bundle of windings corresponding with the diameter of said ring, said ring attached to and coaxial with a free end of a tubular graft;
positioning said ring at a desired position within a body passage; and
allowing said ring to resiliently deform to a second configuration having a larger cross-sectional area than in said first configuration, but still having a cross-sectional area smaller than that of said undeformed ring.
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Accused Products
Abstract
A prosthesis that resiliently engages a body passage includes an annular clamping ring which may be folded along a diametric axis for insertion into the body passage. The clamping ring is adapted to resiliently spring outwardly, once in position inside the body passage, and to be continually resiliently biased against the interior surface of the body passage. One or more of the clamping rings may be attached to opposed ends of a tubular graft. The rings and connected graft may be positioned in the body passage using an applicator which selectively permits expansion and/or in some embodiments contraction of the annular ring in position within a body passage. Alternatively a retaining member may be used to retain the annular ring in a compressed condition until it is in a desired position within a body passage.
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Citations
17 Claims
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1. A method for securing a prosthetic device in a body passage comprising:
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folding a resilient, deformable annular ring, having radii, to assume a first configuration having a cross-sectional area smaller than the cross-sectional area of an undeformed ring, said ring comprising a bundle of closely associated, concentric, radially overlapping windings formed of a strand of wire and overlapping in the directions of said radii, the diameter of said bundle of windings corresponding with the diameter of said ring, said ring attached to and coaxial with a free end of a tubular graft; positioning said ring at a desired position within a body passage; and allowing said ring to resiliently deform to a second configuration having a larger cross-sectional area than in said first configuration, but still having a cross-sectional area smaller than that of said undeformed ring. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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folding an annular resilient element along a diametric axis into a C-shaped configuration, said element attached to a graft; and positioning said graft within a first blood vessel to extend along a length of said first blood vessel, a part of said positioned graft to extend past a point of an intersection of said first blood vessel and a second blood vessel so as not to occlude an opening to permit communication of said intersection, said element to contact said first blood vessel while in said C-shaped configuration. - View Dependent Claims (8, 9, 10, 11)
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12. A method comprising:
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attaching an annular resilient element to an end of a graft; folding said attached element along a diametric axis into a C-shaped configuration overall; and resiliently engaging an arcuate portion of said C-shaped element with the interior of a first blood vessel. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification