Bifurcated stent and delivery system
First Claim
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1. A bifurcated stent comprising:
- a first stent body, the first stent body comprising a substantially tubular stent wall having a circumferential plane, the first stent body being expandable from an unexpanded state to an expanded state, in the expanded state the first stent body defining a primary flow path open at both ends; and
a plurality of members moveably engaged to the stent wall, in the unexpanded state the plurality of members being retained substantially within the circumferential plane of the stent wall, in the expanded state the plurality of members being extended radially outward from the first stent body to form a scaffold, the scaffold defining a side opening in the stent wall, in the expanded state the scaffold defining a secondary flow path, the secondary flow path being in fluid communication with the primary flow path.
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Abstract
Systems for delivering a bifurcated stent to a bifurcation site comprise catheters and/or bifurcated stents delivered therefrom.
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Citations
40 Claims
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1. A bifurcated stent comprising:
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a first stent body, the first stent body comprising a substantially tubular stent wall having a circumferential plane, the first stent body being expandable from an unexpanded state to an expanded state, in the expanded state the first stent body defining a primary flow path open at both ends; and
a plurality of members moveably engaged to the stent wall, in the unexpanded state the plurality of members being retained substantially within the circumferential plane of the stent wall, in the expanded state the plurality of members being extended radially outward from the first stent body to form a scaffold, the scaffold defining a side opening in the stent wall, in the expanded state the scaffold defining a secondary flow path, the secondary flow path being in fluid communication with the primary flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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14. A bifurcated stent assembly comprising:
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a first stent body, the first stent body comprising a substantially tubular stent wall having a circumferential plane, the first stent body being expandable from an unexpanded state to an expanded state, in the expanded state the first stent body defining a primary flow path open at both ends;
a plurality of members moveably engaged to the stent wall, in the unexpanded state the plurality of members being retained substantially within the circumferential plane of the stent wall, in the expanded state the plurality of members being extended radially outward from the first stent body to form a scaffold, the scaffold defining a side opening in the stent wall; and
a second stent body, the second stent body having an unexpanded state and an expanded state, in the unexpanded state the second stent body constructed and arranged to be advanced through the side opening defined by the scaffold of the expanded first stent body, in the expanded state the second stent body being positioned adjacent to the first stent body, an end of the second stent body being engaged by the scaffold, in the expanded state the scaffold and the second stent body defining a secondary flow path, the secondary flow path being in fluid communication with the primary flow path.
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17. A system for deploying a bifurcated stent assembly to a bifurcation site, the system comprising:
a first catheter, the catheter being adapted for insertion into a body vessel and advancement to a bifurcation site along a primary guide wire, the catheter having at least one stent retaining region for retaining a first stent body in an unexpanded state thereon, the first stent body comprising a substantially tubular stent wall having a circumferential plane, the first stent body being expandable from an unexpanded state to an expanded state, and a plurality of members moveably engaged to the stent wall, in the unexpanded state the plurality of members being retained substantially within the circumferential plane of the stent wall, in the expanded state the plurality of members being extended radially outward from the first stent body to form a scaffold, the scaffold defining a side opening in the stent wall.
Specification