Method of treating a lumenal bifurcation
First Claim
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1. A method for treating a bifurcation between a main lumen and a branch lumen, comprising the steps of:
- providing a radially expandable scaffold, having a proximal end, a distal end, a support structure on the distal end, at least two fronds extending proximally from the proximal end of the support structure and axially between the support structure and a circumferential link attached to the fronds and spaced from the proximal end of the support structure by the fronds, the circumferential link connected to the proximal ends of at least two of the fronds;
transluminally navigating the scaffold to a treatment site; and
deploying the scaffold at the site such that a distal end of the support structure is in the branch lumen and the circumferential link is in the main lumen upstream from the bifurcation.
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Abstract
A prosthesis is disclosed for placement at an Os opening from a main body lumen to a branch body lumen. The prosthesis comprises a radially expansible support at one end, a circumferentially extending link at the other end and at least one frond extending axially therebetween. The support is configured to be deployed in the branch body lumen, with the circumferentially extending link in the main lumen and the frond extendable across the Os.
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Citations
17 Claims
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1. A method for treating a bifurcation between a main lumen and a branch lumen, comprising the steps of:
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providing a radially expandable scaffold, having a proximal end, a distal end, a support structure on the distal end, at least two fronds extending proximally from the proximal end of the support structure and axially between the support structure and a circumferential link attached to the fronds and spaced from the proximal end of the support structure by the fronds, the circumferential link connected to the proximal ends of at least two of the fronds; transluminally navigating the scaffold to a treatment site; and deploying the scaffold at the site such that a distal end of the support structure is in the branch lumen and the circumferential link is in the main lumen upstream from the bifurcation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of supporting a vessel wall in the vicinity of an ostium between a main vessel and a branch vessel, comprising the steps of:
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positioning first and second fronds across the ostium, each of the fronds having a first end on a first, branch vessel side of the ostium and a second end on a second, main vessel side of the ostium, the second end of each of the fronds being coupled with a structure that extends circumferentially around the main vessel, the fronds defining an elongate opening therebetween through which a second stent can be delivered in the main vessel; supporting the first ends of the fronds against the vessel wall on the first, branch vessel side of the ostium; and linking the second ends of the fronds with the circumferentially extending structure on the second, main vessel side of the ostium, such that a circumferential distance is maintained between the second ends of the fronds. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification