Vascular bifurcation prosthesis with multiple thin fronds
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, and at least two fronds extending in a proximal direction therefrom;
transluminally navigating the scaffold to a treatment site; and
deploying the support completely within the branch lumen such that all of the at least two fronds extend across the ostium and proximally into the main lumen in a direction opposite to blood flow;
wherein the fronds have an axial length that is at least 1.5 times the width of the support structure prior to radial expansion.
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Abstract
An embodiment of the invention provides a prosthesis for placement at an Os opening from a main body lumen to a branch body lumen. The prosthesis comprises a radially expansible support and a plurality of fronds extending axially from an end of the support. The support is configured to be deployed in at least a portion of the branch body lumen. At least one of the plurality of fronds is extendable into the main body lumen.
297 Citations
20 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, and at least two fronds extending in a proximal direction therefrom; transluminally navigating the scaffold to a treatment site; and deploying the support completely within the branch lumen such that all of the at least two fronds extend across the ostium and proximally into the main lumen in a direction opposite to blood flow; wherein the fronds have an axial length that is at least 1.5 times the width of the support structure prior to radial expansion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification