Vascular bifurcation prosthesis with multiple thin fronds
First Claim
Patent Images
1. A prosthesis for placement at an opening from a main body lumen to a branch body lumen;
- the prosthesis comprising;
a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen; and
a plurality of fronds extending axially from an end of the support, at least one of the plurality of fronds expandable in a circumferential direction, the expandable frond configured to be positioned across the Os and into the main body lumen.
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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.
201 Citations
42 Claims
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1. A prosthesis for placement at an opening from a main body lumen to a branch body lumen;
- the prosthesis comprising;
a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen; and
a plurality of fronds extending axially from an end of the support, at least one of the plurality of fronds expandable in a circumferential direction, the expandable frond configured to be positioned across the Os and into the main body lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- the prosthesis comprising;
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31. A prosthesis for placement at an Os opening from a main body lumen to a branch body lumen;
- the prosthesis comprising;
a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen; and
a plurality of fronds extending axially from an end of the support, the fronds configured to be deformably deployed in at least a portion of the main body lumen and to apply less radial force to adjacent tissue than the expanded support applies in the branch body lumen.
- the prosthesis comprising;
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32. A prosthesis for placement at an Os opening from a main body lumen to a branch body lumen;
- the prosthesis comprising;
a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen; and
a plurality of fronds extending axially from an end of the support, the fronds having a closed loop shape configured to be deformably deployed in at least a portion of the main body lumen and to substantially conform to the surface of the wall defining the main body lumen.
- the prosthesis comprising;
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33. 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 in the branch lumen such that at least two fronds extend proximally into the main lumen. - View Dependent Claims (34, 35, 36)
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37. A method for bridging a gap between a main vessel stent and a branch vessel stent at a bifurcation in the vascular system, comprising the steps of:
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positioning a first tubular support structure in the branch vessel, the tubular support structure including a plurality of axially extending fronds which extend across an ostium into the main vessel;
positioning a main vessel stent across the ostium; and
deploying the main vessel stent such that at least one frond is entrapped between the main vessel stent and the adjacent vascular wall. - View Dependent Claims (38, 39)
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40. A kit for stenting a bifurcation in a vessel, comprising:
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a branch vessel stent, having a proximal end, a distal end, and at least one frond extending from either the proximal or distal end; and
a main vessel stent, for entrapping the frond against a vessel wall. - View Dependent Claims (41, 42)
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Specification