METHOD OF TREATING VASCULAR BIFURCATIONS
1 Assignment
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Accused Products
Abstract
A prosthesis is disclosed for placement across an ostium 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 circumferential link can comprise a catheter securement portion and a frond engagement portion.
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Citations
41 Claims
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1-21. -21. (canceled)
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22. A method of treating a bifurcation between a first body lumen and a second body lumen, comprising:
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providing a radially expandable scaffold, having a first end portion, a second end portion, a support structure on the first end portion, a circumferential member on the second end portion and at least one elongate member extending therebetween; transluminally navigating the scaffold to a treatment site; deploying the support structure in the first body lumen; positioning a first end of a transition portion having a plurality of spaced apart axially undulating filaments on a first body lumen side of an ostium opening, the first end of the transition portion extending from an end of the support structure; positioning a first end of a single filament extending between the transition portion and a second end of the elongate member on a second body lumen side of the ostium opening; and deploying the circumferential member in the second body lumen positioned a distance from the bifurcation. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of supporting a vessel wall in the vicinity of an ostium between a first vessel and a second vessel, comprising:
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providing a prosthesis comprising a radially expandable support having a first density of struts, a circumferential member, and at least one elongate member therebetween; positioning the support in the first vessel; positioning a transition portion having a second density of struts greater than the first density of struts at least in the unexpanded state adjacent the ostium, the transition portion coupled to the support; positioning a first end of a single filament extending between the transition portion and a second end of the elongate member in the second vessel; positioning the circumferential member in the second vessel; supporting a first end of the transition portion against a wall in or adjacent to a first vessel; and biasing the second end of the elongate member radially outward and toward a second vessel wall spaced from the ostium. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification